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Finding the Fourth Proportional to 539,337.70, 809,006.55 and 528,840.10

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Solution

The fourth proportional to 539,337.70, 809,006.55 and 528,840.10 is: 793,260.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,337.70 : 809,006.55 = 528,840.10 : x
  2. Step 2: Convert to fraction form
    539,337.70/809,006.55 = 528,840.10/x
  3. Step 3: Cross multiply
    539,337.70x = 809,006.55 × 528,840.10
  4. Step 4: Simplify right side
    539,337.70x = 427,835,104,802.66
  5. Step 5: Solve for x
    x = 427,835,104,802.66/539,337.70
  6. Step 6: Final answer
    x = 793,260.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.