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Finding the Fourth Proportional to 616,898.72, 849,427.70 and 539,987.40

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Solution

The fourth proportional to 616,898.72, 849,427.70 and 539,987.40 is: 743,526.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,898.72 : 849,427.70 = 539,987.40 : x
  2. Step 2: Convert to fraction form
    616,898.72/849,427.70 = 539,987.40/x
  3. Step 3: Cross multiply
    616,898.72x = 849,427.70 × 539,987.40
  4. Step 4: Simplify right side
    616,898.72x = 458,680,252,511.04
  5. Step 5: Solve for x
    x = 458,680,252,511.04/616,898.72
  6. Step 6: Final answer
    x = 743,526.03

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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.