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Finding the Fourth Proportional to 560,373.72, 773,337.42 and 318,678.36

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Solution

The fourth proportional to 560,373.72, 773,337.42 and 318,678.36 is: 439,788.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,373.72 : 773,337.42 = 318,678.36 : x
  2. Step 2: Convert to fraction form
    560,373.72/773,337.42 = 318,678.36/x
  3. Step 3: Cross multiply
    560,373.72x = 773,337.42 × 318,678.36
  4. Step 4: Simplify right side
    560,373.72x = 246,445,900,732.23
  5. Step 5: Solve for x
    x = 246,445,900,732.23/560,373.72
  6. Step 6: Final answer
    x = 439,788.47

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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.