Home / 875,134.20-1,312,701.30-665,182.20

Finding the Fourth Proportional to 875,134.20, 1,312,701.30 and 665,182.20

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Solution

The fourth proportional to 875,134.20, 1,312,701.30 and 665,182.20 is: 997,773.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,134.20 : 1,312,701.30 = 665,182.20 : x
  2. Step 2: Convert to fraction form
    875,134.20/1,312,701.30 = 665,182.20/x
  3. Step 3: Cross multiply
    875,134.20x = 1,312,701.30 × 665,182.20
  4. Step 4: Simplify right side
    875,134.20x = 873,185,538,676.86
  5. Step 5: Solve for x
    x = 873,185,538,676.86/875,134.20
  6. Step 6: Final answer
    x = 997,773.30

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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.