Home / 745,524.20-1,118,432.10-319,059.20

Finding the Fourth Proportional to 745,524.20, 1,118,432.10 and 319,059.20

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Solution

The fourth proportional to 745,524.20, 1,118,432.10 and 319,059.20 is: 478,651.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,524.20 : 1,118,432.10 = 319,059.20 : x
  2. Step 2: Convert to fraction form
    745,524.20/1,118,432.10 = 319,059.20/x
  3. Step 3: Cross multiply
    745,524.20x = 1,118,432.10 × 319,059.20
  4. Step 4: Simplify right side
    745,524.20x = 356,846,051,080.32
  5. Step 5: Solve for x
    x = 356,846,051,080.32/745,524.20
  6. Step 6: Final answer
    x = 478,651.20

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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.