Home / 907,280.66-1,252,037.45-499,373.78

Finding the Fourth Proportional to 907,280.66, 1,252,037.45 and 499,373.78

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Solution

The fourth proportional to 907,280.66, 1,252,037.45 and 499,373.78 is: 689,130.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,280.66 : 1,252,037.45 = 499,373.78 : x
  2. Step 2: Convert to fraction form
    907,280.66/1,252,037.45 = 499,373.78/x
  3. Step 3: Cross multiply
    907,280.66x = 1,252,037.45 × 499,373.78
  4. Step 4: Simplify right side
    907,280.66x = 625,234,669,096.31
  5. Step 5: Solve for x
    x = 625,234,669,096.31/907,280.66
  6. Step 6: Final answer
    x = 689,130.38

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1.5x scale

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.