Home / 1,098,981.60-1,648,472.40-340,821.60

Finding the Fourth Proportional to 1,098,981.60, 1,648,472.40 and 340,821.60

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Solution

The fourth proportional to 1,098,981.60, 1,648,472.40 and 340,821.60 is: 511,232.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,981.60 : 1,648,472.40 = 340,821.60 : x
  2. Step 2: Convert to fraction form
    1,098,981.60/1,648,472.40 = 340,821.60/x
  3. Step 3: Cross multiply
    1,098,981.60x = 1,648,472.40 × 340,821.60
  4. Step 4: Simplify right side
    1,098,981.60x = 561,835,000,923.84
  5. Step 5: Solve for x
    x = 561,835,000,923.84/1,098,981.60
  6. Step 6: Final answer
    x = 511,232.40

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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.