Home / 915,473.20-1,263,346.96-507,575.20

Finding the Fourth Proportional to 915,473.20, 1,263,346.96 and 507,575.20

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Solution

The fourth proportional to 915,473.20, 1,263,346.96 and 507,575.20 is: 700,450.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,473.20 : 1,263,346.96 = 507,575.20 : x
  2. Step 2: Convert to fraction form
    915,473.20/1,263,346.96 = 507,575.20/x
  3. Step 3: Cross multiply
    915,473.20x = 1,263,346.96 × 507,575.20
  4. Step 4: Simplify right side
    915,473.20x = 641,243,585,891.39
  5. Step 5: Solve for x
    x = 641,243,585,891.39/915,473.20
  6. Step 6: Final answer
    x = 700,450.42

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.