Home / 907,289.18-1,252,049.16-499,382.28

Finding the Fourth Proportional to 907,289.18, 1,252,049.16 and 499,382.28

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Solution

The fourth proportional to 907,289.18, 1,252,049.16 and 499,382.28 is: 689,142.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,289.18 : 1,252,049.16 = 499,382.28 : x
  2. Step 2: Convert to fraction form
    907,289.18/1,252,049.16 = 499,382.28/x
  3. Step 3: Cross multiply
    907,289.18x = 1,252,049.16 × 499,382.28
  4. Step 4: Simplify right side
    907,289.18x = 625,251,164,192.89
  5. Step 5: Solve for x
    x = 625,251,164,192.89/907,289.18
  6. Step 6: Final answer
    x = 689,142.09

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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.