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Finding the Fourth Proportional to 630,042.34, 869,426.86 and 358,074.30

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Solution

The fourth proportional to 630,042.34, 869,426.86 and 358,074.30 is: 494,124.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,042.34 : 869,426.86 = 358,074.30 : x
  2. Step 2: Convert to fraction form
    630,042.34/869,426.86 = 358,074.30/x
  3. Step 3: Cross multiply
    630,042.34x = 869,426.86 × 358,074.30
  4. Step 4: Simplify right side
    630,042.34x = 311,319,414,295.70
  5. Step 5: Solve for x
    x = 311,319,414,295.70/630,042.34
  6. Step 6: Final answer
    x = 494,124.59

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