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Finding the Fourth Proportional to 715,225.35, 986,762.77 and 457,253.29

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Solution

The fourth proportional to 715,225.35, 986,762.77 and 457,253.29 is: 630,850.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,225.35 : 986,762.77 = 457,253.29 : x
  2. Step 2: Convert to fraction form
    715,225.35/986,762.77 = 457,253.29/x
  3. Step 3: Cross multiply
    715,225.35x = 986,762.77 × 457,253.29
  4. Step 4: Simplify right side
    715,225.35x = 451,200,523,032.01
  5. Step 5: Solve for x
    x = 451,200,523,032.01/715,225.35
  6. Step 6: Final answer
    x = 630,850.85

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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.