Home / 738,741.32-1,019,463.02-399,209.56

Finding the Fourth Proportional to 738,741.32, 1,019,463.02 and 399,209.56

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Solution

The fourth proportional to 738,741.32, 1,019,463.02 and 399,209.56 is: 550,909.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,741.32 : 1,019,463.02 = 399,209.56 : x
  2. Step 2: Convert to fraction form
    738,741.32/1,019,463.02 = 399,209.56/x
  3. Step 3: Cross multiply
    738,741.32x = 1,019,463.02 × 399,209.56
  4. Step 4: Simplify right side
    738,741.32x = 406,979,383,650.47
  5. Step 5: Solve for x
    x = 406,979,383,650.47/738,741.32
  6. Step 6: Final answer
    x = 550,909.19

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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.