Home / 907,985.68-1,253,010.12-500,079.76

Finding the Fourth Proportional to 907,985.68, 1,253,010.12 and 500,079.76

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Solution

The fourth proportional to 907,985.68, 1,253,010.12 and 500,079.76 is: 690,104.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,985.68 : 1,253,010.12 = 500,079.76 : x
  2. Step 2: Convert to fraction form
    907,985.68/1,253,010.12 = 500,079.76/x
  3. Step 3: Cross multiply
    907,985.68x = 1,253,010.12 × 500,079.76
  4. Step 4: Simplify right side
    907,985.68x = 626,605,000,087.17
  5. Step 5: Solve for x
    x = 626,605,000,087.17/907,985.68
  6. Step 6: Final answer
    x = 690,104.50

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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.