Home / 746,594.40-1,119,891.60-431,666.40

Finding the Fourth Proportional to 746,594.40, 1,119,891.60 and 431,666.40

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Solution

The fourth proportional to 746,594.40, 1,119,891.60 and 431,666.40 is: 647,499.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,594.40 : 1,119,891.60 = 431,666.40 : x
  2. Step 2: Convert to fraction form
    746,594.40/1,119,891.60 = 431,666.40/x
  3. Step 3: Cross multiply
    746,594.40x = 1,119,891.60 × 431,666.40
  4. Step 4: Simplify right side
    746,594.40x = 483,419,575,362.24
  5. Step 5: Solve for x
    x = 483,419,575,362.24/746,594.40
  6. Step 6: Final answer
    x = 647,499.60

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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.