Home / 752,153.80-1,037,966.10-407,988.86

Finding the Fourth Proportional to 752,153.80, 1,037,966.10 and 407,988.86

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Solution

The fourth proportional to 752,153.80, 1,037,966.10 and 407,988.86 is: 563,021.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,153.80 : 1,037,966.10 = 407,988.86 : x
  2. Step 2: Convert to fraction form
    752,153.80/1,037,966.10 = 407,988.86/x
  3. Step 3: Cross multiply
    752,153.80x = 1,037,966.10 × 407,988.86
  4. Step 4: Simplify right side
    752,153.80x = 423,478,605,857.65
  5. Step 5: Solve for x
    x = 423,478,605,857.65/752,153.80
  6. Step 6: Final answer
    x = 563,021.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.