Home / 831,801.76-1,147,877.63-469,343.57

Finding the Fourth Proportional to 831,801.76, 1,147,877.63 and 469,343.57

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Solution

The fourth proportional to 831,801.76, 1,147,877.63 and 469,343.57 is: 647,689.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,801.76 : 1,147,877.63 = 469,343.57 : x
  2. Step 2: Convert to fraction form
    831,801.76/1,147,877.63 = 469,343.57/x
  3. Step 3: Cross multiply
    831,801.76x = 1,147,877.63 × 469,343.57
  4. Step 4: Simplify right side
    831,801.76x = 538,748,978,461.27
  5. Step 5: Solve for x
    x = 538,748,978,461.27/831,801.76
  6. Step 6: Final answer
    x = 647,689.16

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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.