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Finding the Fourth Proportional to 652,558.20, 900,916.40 and 411,047.79

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Solution

The fourth proportional to 652,558.20, 900,916.40 and 411,047.79 is: 567,489.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,558.20 : 900,916.40 = 411,047.79 : x
  2. Step 2: Convert to fraction form
    652,558.20/900,916.40 = 411,047.79/x
  3. Step 3: Cross multiply
    652,558.20x = 900,916.40 × 411,047.79
  4. Step 4: Simplify right side
    652,558.20x = 370,319,695,194.76
  5. Step 5: Solve for x
    x = 370,319,695,194.76/652,558.20
  6. Step 6: Final answer
    x = 567,489.15

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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.