Home / 991,254.48-1,486,938.30-281,226.72

Finding the Fourth Proportional to 991,254.48, 1,486,938.30 and 281,226.72

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Solution

The fourth proportional to 991,254.48, 1,486,938.30 and 281,226.72 is: 421,856.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,254.48 : 1,486,938.30 = 281,226.72 : x
  2. Step 2: Convert to fraction form
    991,254.48/1,486,938.30 = 281,226.72/x
  3. Step 3: Cross multiply
    991,254.48x = 1,486,938.30 × 281,226.72
  4. Step 4: Simplify right side
    991,254.48x = 418,166,780,951.38
  5. Step 5: Solve for x
    x = 418,166,780,951.38/991,254.48
  6. Step 6: Final answer
    x = 421,856.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.