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Finding the Fourth Proportional to 539,088.90, 808,633.35 and 371,127.30

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Solution

The fourth proportional to 539,088.90, 808,633.35 and 371,127.30 is: 556,690.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,088.90 : 808,633.35 = 371,127.30 : x
  2. Step 2: Convert to fraction form
    539,088.90/808,633.35 = 371,127.30/x
  3. Step 3: Cross multiply
    539,088.90x = 808,633.35 × 371,127.30
  4. Step 4: Simplify right side
    539,088.90x = 300,105,911,875.46
  5. Step 5: Solve for x
    x = 300,105,911,875.46/539,088.90
  6. Step 6: Final answer
    x = 556,690.95

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Similar ratio
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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.