Home / 770,037.54-1,155,135.53-290,669.10

Finding the Fourth Proportional to 770,037.54, 1,155,135.53 and 290,669.10

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Solution

The fourth proportional to 770,037.54, 1,155,135.53 and 290,669.10 is: 436,033.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,037.54 : 1,155,135.53 = 290,669.10 : x
  2. Step 2: Convert to fraction form
    770,037.54/1,155,135.53 = 290,669.10/x
  3. Step 3: Cross multiply
    770,037.54x = 1,155,135.53 × 290,669.10
  4. Step 4: Simplify right side
    770,037.54x = 335,762,204,883.12
  5. Step 5: Solve for x
    x = 335,762,204,883.12/770,037.54
  6. Step 6: Final answer
    x = 436,033.55

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.