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Finding the Fourth Proportional to 636,521.86, 878,151.55 and 364,444.34

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Solution

The fourth proportional to 636,521.86, 878,151.55 and 364,444.34 is: 502,790.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,521.86 : 878,151.55 = 364,444.34 : x
  2. Step 2: Convert to fraction form
    636,521.86/878,151.55 = 364,444.34/x
  3. Step 3: Cross multiply
    636,521.86x = 878,151.55 × 364,444.34
  4. Step 4: Simplify right side
    636,521.86x = 320,037,362,059.73
  5. Step 5: Solve for x
    x = 320,037,362,059.73/636,521.86
  6. Step 6: Final answer
    x = 502,790.85

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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.