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Finding the Fourth Proportional to 636,494.63, 878,368.88 and 350,016.71

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Solution

The fourth proportional to 636,494.63, 878,368.88 and 350,016.71 is: 483,026.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,494.63 : 878,368.88 = 350,016.71 : x
  2. Step 2: Convert to fraction form
    636,494.63/878,368.88 = 350,016.71/x
  3. Step 3: Cross multiply
    636,494.63x = 878,368.88 × 350,016.71
  4. Step 4: Simplify right side
    636,494.63x = 307,443,785,543.99
  5. Step 5: Solve for x
    x = 307,443,785,543.99/636,494.63
  6. Step 6: Final answer
    x = 483,026.52

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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.