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Finding the Fourth Proportional to 649,303.20, 973,954.80 and 531,205.20

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Solution

The fourth proportional to 649,303.20, 973,954.80 and 531,205.20 is: 796,807.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,303.20 : 973,954.80 = 531,205.20 : x
  2. Step 2: Convert to fraction form
    649,303.20/973,954.80 = 531,205.20/x
  3. Step 3: Cross multiply
    649,303.20x = 973,954.80 × 531,205.20
  4. Step 4: Simplify right side
    649,303.20x = 517,369,854,324.96
  5. Step 5: Solve for x
    x = 517,369,854,324.96/649,303.20
  6. Step 6: Final answer
    x = 796,807.80

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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.