Home / 873,321.33-1,205,171.08-491,347.20

Finding the Fourth Proportional to 873,321.33, 1,205,171.08 and 491,347.20

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Solution

The fourth proportional to 873,321.33, 1,205,171.08 and 491,347.20 is: 678,052.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,321.33 : 1,205,171.08 = 491,347.20 : x
  2. Step 2: Convert to fraction form
    873,321.33/1,205,171.08 = 491,347.20/x
  3. Step 3: Cross multiply
    873,321.33x = 1,205,171.08 × 491,347.20
  4. Step 4: Simplify right side
    873,321.33x = 592,157,431,565.20
  5. Step 5: Solve for x
    x = 592,157,431,565.20/873,321.33
  6. Step 6: Final answer
    x = 678,052.18

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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.