Home / 1,098,982.90-1,648,474.35-679,078.90

Finding the Fourth Proportional to 1,098,982.90, 1,648,474.35 and 679,078.90

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Solution

The fourth proportional to 1,098,982.90, 1,648,474.35 and 679,078.90 is: 1,018,618.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,982.90 : 1,648,474.35 = 679,078.90 : x
  2. Step 2: Convert to fraction form
    1,098,982.90/1,648,474.35 = 679,078.90/x
  3. Step 3: Cross multiply
    1,098,982.90x = 1,648,474.35 × 679,078.90
  4. Step 4: Simplify right side
    1,098,982.90x = 1,119,444,148,276.22
  5. Step 5: Solve for x
    x = 1,119,444,148,276.22/1,098,982.90
  6. Step 6: Final answer
    x = 1,018,618.35

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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.