Home / 831,100.32-1,248,901.56-452,301.12

Finding the Fourth Proportional to 831,100.32, 1,248,901.56 and 452,301.12

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Solution

The fourth proportional to 831,100.32, 1,248,901.56 and 452,301.12 is: 679,676.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,100.32 : 1,248,901.56 = 452,301.12 : x
  2. Step 2: Convert to fraction form
    831,100.32/1,248,901.56 = 452,301.12/x
  3. Step 3: Cross multiply
    831,100.32x = 1,248,901.56 × 452,301.12
  4. Step 4: Simplify right side
    831,100.32x = 564,879,574,357.75
  5. Step 5: Solve for x
    x = 564,879,574,357.75/831,100.32
  6. Step 6: Final answer
    x = 679,676.76

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Double scale
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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.