Home / 657,904.64-907,810.68-385,869.92

Finding the Fourth Proportional to 657,904.64, 907,810.68 and 385,869.92

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Solution

The fourth proportional to 657,904.64, 907,810.68 and 385,869.92 is: 532,443.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,904.64 : 907,810.68 = 385,869.92 : x
  2. Step 2: Convert to fraction form
    657,904.64/907,810.68 = 385,869.92/x
  3. Step 3: Cross multiply
    657,904.64x = 907,810.68 × 385,869.92
  4. Step 4: Simplify right side
    657,904.64x = 350,296,834,466.75
  5. Step 5: Solve for x
    x = 350,296,834,466.75/657,904.64
  6. Step 6: Final answer
    x = 532,443.17

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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.