Home / 649,621.40-974,432.10-471,291.80

Finding the Fourth Proportional to 649,621.40, 974,432.10 and 471,291.80

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Solution

The fourth proportional to 649,621.40, 974,432.10 and 471,291.80 is: 706,937.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,621.40 : 974,432.10 = 471,291.80 : x
  2. Step 2: Convert to fraction form
    649,621.40/974,432.10 = 471,291.80/x
  3. Step 3: Cross multiply
    649,621.40x = 974,432.10 × 471,291.80
  4. Step 4: Simplify right side
    649,621.40x = 459,241,858,386.78
  5. Step 5: Solve for x
    x = 459,241,858,386.78/649,621.40
  6. Step 6: Final answer
    x = 706,937.70

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