Home / 770,406.10-1,155,383.16-290,287.52

Finding the Fourth Proportional to 770,406.10, 1,155,383.16 and 290,287.52

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Solution

The fourth proportional to 770,406.10, 1,155,383.16 and 290,287.52 is: 435,346.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,406.10 : 1,155,383.16 = 290,287.52 : x
  2. Step 2: Convert to fraction form
    770,406.10/1,155,383.16 = 290,287.52/x
  3. Step 3: Cross multiply
    770,406.10x = 1,155,383.16 × 290,287.52
  4. Step 4: Simplify right side
    770,406.10x = 335,393,312,166.16
  5. Step 5: Solve for x
    x = 335,393,312,166.16/770,406.10
  6. Step 6: Final answer
    x = 435,346.13

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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.