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Finding the Fourth Proportional to 539,854.80, 808,601.22 and 349,653.84

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Solution

The fourth proportional to 539,854.80, 808,601.22 and 349,653.84 is: 523,715.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,854.80 : 808,601.22 = 349,653.84 : x
  2. Step 2: Convert to fraction form
    539,854.80/808,601.22 = 349,653.84/x
  3. Step 3: Cross multiply
    539,854.80x = 808,601.22 × 349,653.84
  4. Step 4: Simplify right side
    539,854.80x = 282,730,521,601.69
  5. Step 5: Solve for x
    x = 282,730,521,601.69/539,854.80
  6. Step 6: Final answer
    x = 523,715.86

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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.