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Finding the Fourth Proportional to 555,746.14, 831,335.65 and 443,645.30

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Solution

The fourth proportional to 555,746.14, 831,335.65 and 443,645.30 is: 663,645.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,746.14 : 831,335.65 = 443,645.30 : x
  2. Step 2: Convert to fraction form
    555,746.14/831,335.65 = 443,645.30/x
  3. Step 3: Cross multiply
    555,746.14x = 831,335.65 × 443,645.30
  4. Step 4: Simplify right side
    555,746.14x = 368,818,157,309.68
  5. Step 5: Solve for x
    x = 368,818,157,309.68/555,746.14
  6. Step 6: Final answer
    x = 663,645.02

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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.