Home / 831,844.40-1,147,823.88-469,284.08

Finding the Fourth Proportional to 831,844.40, 1,147,823.88 and 469,284.08

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Solution

The fourth proportional to 831,844.40, 1,147,823.88 and 469,284.08 is: 647,543.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,844.40 : 1,147,823.88 = 469,284.08 : x
  2. Step 2: Convert to fraction form
    831,844.40/1,147,823.88 = 469,284.08/x
  3. Step 3: Cross multiply
    831,844.40x = 1,147,823.88 × 469,284.08
  4. Step 4: Simplify right side
    831,844.40x = 538,655,473,527.83
  5. Step 5: Solve for x
    x = 538,655,473,527.83/831,844.40
  6. Step 6: Final answer
    x = 647,543.55

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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.