Home / 731,756.40-1,098,325.80-451,820.40

Finding the Fourth Proportional to 731,756.40, 1,098,325.80 and 451,820.40

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Solution

The fourth proportional to 731,756.40, 1,098,325.80 and 451,820.40 is: 678,157.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,756.40 : 1,098,325.80 = 451,820.40 : x
  2. Step 2: Convert to fraction form
    731,756.40/1,098,325.80 = 451,820.40/x
  3. Step 3: Cross multiply
    731,756.40x = 1,098,325.80 × 451,820.40
  4. Step 4: Simplify right side
    731,756.40x = 496,246,002,286.32
  5. Step 5: Solve for x
    x = 496,246,002,286.32/731,756.40
  6. Step 6: Final answer
    x = 678,157.38

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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.