Home / 688,390.18-949,982.25-382,466.98

Finding the Fourth Proportional to 688,390.18, 949,982.25 and 382,466.98

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Solution

The fourth proportional to 688,390.18, 949,982.25 and 382,466.98 is: 527,806.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,390.18 : 949,982.25 = 382,466.98 : x
  2. Step 2: Convert to fraction form
    688,390.18/949,982.25 = 382,466.98/x
  3. Step 3: Cross multiply
    688,390.18x = 949,982.25 × 382,466.98
  4. Step 4: Simplify right side
    688,390.18x = 363,336,842,211.11
  5. Step 5: Solve for x
    x = 363,336,842,211.11/688,390.18
  6. Step 6: Final answer
    x = 527,806.54

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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.