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Finding the Fourth Proportional to 456,770.55, 630,327.28 and 252,821.87

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Solution

The fourth proportional to 456,770.55, 630,327.28 and 252,821.87 is: 348,885.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,770.55 : 630,327.28 = 252,821.87 : x
  2. Step 2: Convert to fraction form
    456,770.55/630,327.28 = 252,821.87/x
  3. Step 3: Cross multiply
    456,770.55x = 630,327.28 × 252,821.87
  4. Step 4: Simplify right side
    456,770.55x = 159,360,521,641.61
  5. Step 5: Solve for x
    x = 159,360,521,641.61/456,770.55
  6. Step 6: Final answer
    x = 348,885.28

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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.