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Finding the Fourth Proportional to 560,087.46, 772,966.62 and 318,445.86

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Solution

The fourth proportional to 560,087.46, 772,966.62 and 318,445.86 is: 439,481.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,087.46 : 772,966.62 = 318,445.86 : x
  2. Step 2: Convert to fraction form
    560,087.46/772,966.62 = 318,445.86/x
  3. Step 3: Cross multiply
    560,087.46x = 772,966.62 × 318,445.86
  4. Step 4: Simplify right side
    560,087.46x = 246,148,020,057.19
  5. Step 5: Solve for x
    x = 246,148,020,057.19/560,087.46
  6. Step 6: Final answer
    x = 439,481.40

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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.