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Finding the Fourth Proportional to 636,460.24, 878,328.48 and 349,996.08

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Solution

The fourth proportional to 636,460.24, 878,328.48 and 349,996.08 is: 483,001.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,460.24 : 878,328.48 = 349,996.08 : x
  2. Step 2: Convert to fraction form
    636,460.24/878,328.48 = 349,996.08/x
  3. Step 3: Cross multiply
    636,460.24x = 878,328.48 × 349,996.08
  4. Step 4: Simplify right side
    636,460.24x = 307,411,524,952.36
  5. Step 5: Solve for x
    x = 307,411,524,952.36/636,460.24
  6. Step 6: Final answer
    x = 483,001.93

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.