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Finding the Fourth Proportional to 636,460.24, 878,312 and 374,967.36

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Solution

The fourth proportional to 636,460.24, 878,312 and 374,967.36 is: 517,453.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,460.24 : 878,312 = 374,967.36 : x
  2. Step 2: Convert to fraction form
    636,460.24/878,312 = 374,967.36/x
  3. Step 3: Cross multiply
    636,460.24x = 878,312 × 374,967.36
  4. Step 4: Simplify right side
    636,460.24x = 329,338,331,896.32
  5. Step 5: Solve for x
    x = 329,338,331,896.32/636,460.24
  6. Step 6: Final answer
    x = 517,453.11

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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.