Home / 1,098,951.60-1,648,427.40-815,516.40

Finding the Fourth Proportional to 1,098,951.60, 1,648,427.40 and 815,516.40

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Solution

The fourth proportional to 1,098,951.60, 1,648,427.40 and 815,516.40 is: 1,223,274.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,951.60 : 1,648,427.40 = 815,516.40 : x
  2. Step 2: Convert to fraction form
    1,098,951.60/1,648,427.40 = 815,516.40/x
  3. Step 3: Cross multiply
    1,098,951.60x = 1,648,427.40 × 815,516.40
  4. Step 4: Simplify right side
    1,098,951.60x = 1,344,319,578,909.36
  5. Step 5: Solve for x
    x = 1,344,319,578,909.36/1,098,951.60
  6. Step 6: Final answer
    x = 1,223,274.60

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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.