Home / 913,899.78-1,261,221.10-506,001.60

Finding the Fourth Proportional to 913,899.78, 1,261,221.10 and 506,001.60

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Solution

The fourth proportional to 913,899.78, 1,261,221.10 and 506,001.60 is: 698,304.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,899.78 : 1,261,221.10 = 506,001.60 : x
  2. Step 2: Convert to fraction form
    913,899.78/1,261,221.10 = 506,001.60/x
  3. Step 3: Cross multiply
    913,899.78x = 1,261,221.10 × 506,001.60
  4. Step 4: Simplify right side
    913,899.78x = 638,179,894,553.76
  5. Step 5: Solve for x
    x = 638,179,894,553.76/913,899.78
  6. Step 6: Final answer
    x = 698,304.02

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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.