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Finding the Fourth Proportional to 539,088.70, 808,633.05 and 371,127.10

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Solution

The fourth proportional to 539,088.70, 808,633.05 and 371,127.10 is: 556,690.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,088.70 : 808,633.05 = 371,127.10 : x
  2. Step 2: Convert to fraction form
    539,088.70/808,633.05 = 371,127.10/x
  3. Step 3: Cross multiply
    539,088.70x = 808,633.05 × 371,127.10
  4. Step 4: Simplify right side
    539,088.70x = 300,105,638,810.66
  5. Step 5: Solve for x
    x = 300,105,638,810.66/539,088.70
  6. Step 6: Final answer
    x = 556,690.65

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Double scale
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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.