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Finding the Fourth Proportional to 649,358.70, 974,038.05 and 531,260.70

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Solution

The fourth proportional to 649,358.70, 974,038.05 and 531,260.70 is: 796,891.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,358.70 : 974,038.05 = 531,260.70 : x
  2. Step 2: Convert to fraction form
    649,358.70/974,038.05 = 531,260.70/x
  3. Step 3: Cross multiply
    649,358.70x = 974,038.05 × 531,260.70
  4. Step 4: Simplify right side
    649,358.70x = 517,468,136,269.64
  5. Step 5: Solve for x
    x = 517,468,136,269.64/649,358.70
  6. Step 6: Final answer
    x = 796,891.05

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Double scale
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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.