Home / 831,788.76-1,147,862.70-449,810.04

Finding the Fourth Proportional to 831,788.76, 1,147,862.70 and 449,810.04

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Solution

The fourth proportional to 831,788.76, 1,147,862.70 and 449,810.04 is: 620,734.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,788.76 : 1,147,862.70 = 449,810.04 : x
  2. Step 2: Convert to fraction form
    831,788.76/1,147,862.70 = 449,810.04/x
  3. Step 3: Cross multiply
    831,788.76x = 1,147,862.70 × 449,810.04
  4. Step 4: Simplify right side
    831,788.76x = 516,320,167,001.51
  5. Step 5: Solve for x
    x = 516,320,167,001.51/831,788.76
  6. Step 6: Final answer
    x = 620,734.72

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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.