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Finding the Fourth Proportional to 636,329.60, 878,094.24 and 364,397.12

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Solution

The fourth proportional to 636,329.60, 878,094.24 and 364,397.12 is: 502,844.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,329.60 : 878,094.24 = 364,397.12 : x
  2. Step 2: Convert to fraction form
    636,329.60/878,094.24 = 364,397.12/x
  3. Step 3: Cross multiply
    636,329.60x = 878,094.24 × 364,397.12
  4. Step 4: Simplify right side
    636,329.60x = 319,975,012,144.59
  5. Step 5: Solve for x
    x = 319,975,012,144.59/636,329.60
  6. Step 6: Final answer
    x = 502,844.77

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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.