Home / 770,444.20-1,155,644.70-349,719.40

Finding the Fourth Proportional to 770,444.20, 1,155,644.70 and 349,719.40

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Solution

The fourth proportional to 770,444.20, 1,155,644.70 and 349,719.40 is: 524,569.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,444.20 : 1,155,644.70 = 349,719.40 : x
  2. Step 2: Convert to fraction form
    770,444.20/1,155,644.70 = 349,719.40/x
  3. Step 3: Cross multiply
    770,444.20x = 1,155,644.70 × 349,719.40
  4. Step 4: Simplify right side
    770,444.20x = 404,151,371,097.18
  5. Step 5: Solve for x
    x = 404,151,371,097.18/770,444.20
  6. Step 6: Final answer
    x = 524,569.30

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Double scale
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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.