Home / 831,551.81-1,147,472.77-469,064.76

Finding the Fourth Proportional to 831,551.81, 1,147,472.77 and 469,064.76

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Solution

The fourth proportional to 831,551.81, 1,147,472.77 and 469,064.76 is: 647,270.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,551.81 : 1,147,472.77 = 469,064.76 : x
  2. Step 2: Convert to fraction form
    831,551.81/1,147,472.77 = 469,064.76/x
  3. Step 3: Cross multiply
    831,551.81x = 1,147,472.77 × 469,064.76
  4. Step 4: Simplify right side
    831,551.81x = 538,239,042,335.27
  5. Step 5: Solve for x
    x = 538,239,042,335.27/831,551.81
  6. Step 6: Final answer
    x = 647,270.60

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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.