Home / 875,385.28-1,312,585.40-276,234.76

Finding the Fourth Proportional to 875,385.28, 1,312,585.40 and 276,234.76

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Solution

The fourth proportional to 875,385.28, 1,312,585.40 and 276,234.76 is: 414,196.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,385.28 : 1,312,585.40 = 276,234.76 : x
  2. Step 2: Convert to fraction form
    875,385.28/1,312,585.40 = 276,234.76/x
  3. Step 3: Cross multiply
    875,385.28x = 1,312,585.40 × 276,234.76
  4. Step 4: Simplify right side
    875,385.28x = 362,581,712,948.50
  5. Step 5: Solve for x
    x = 362,581,712,948.50/875,385.28
  6. Step 6: Final answer
    x = 414,196.72

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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.