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Finding the Fourth Proportional to 539,882.30, 808,657.05 and 446,570.30

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Solution

The fourth proportional to 539,882.30, 808,657.05 and 446,570.30 is: 668,890.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,882.30 : 808,657.05 = 446,570.30 : x
  2. Step 2: Convert to fraction form
    539,882.30/808,657.05 = 446,570.30/x
  3. Step 3: Cross multiply
    539,882.30x = 808,657.05 × 446,570.30
  4. Step 4: Simplify right side
    539,882.30x = 361,122,221,415.62
  5. Step 5: Solve for x
    x = 361,122,221,415.62/539,882.30
  6. Step 6: Final answer
    x = 668,890.65

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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.