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Finding the Fourth Proportional to 649,674.40, 974,511.60 and 471,344.80

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Solution

The fourth proportional to 649,674.40, 974,511.60 and 471,344.80 is: 707,017.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,674.40 : 974,511.60 = 471,344.80 : x
  2. Step 2: Convert to fraction form
    649,674.40/974,511.60 = 471,344.80/x
  3. Step 3: Cross multiply
    649,674.40x = 974,511.60 × 471,344.80
  4. Step 4: Simplify right side
    649,674.40x = 459,330,975,199.68
  5. Step 5: Solve for x
    x = 459,330,975,199.68/649,674.40
  6. Step 6: Final answer
    x = 707,017.20

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Similar ratio
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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.