Home / 826,853.60-1,240,280.40-815,794.40

Finding the Fourth Proportional to 826,853.60, 1,240,280.40 and 815,794.40

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Solution

The fourth proportional to 826,853.60, 1,240,280.40 and 815,794.40 is: 1,223,691.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,853.60 : 1,240,280.40 = 815,794.40 : x
  2. Step 2: Convert to fraction form
    826,853.60/1,240,280.40 = 815,794.40/x
  3. Step 3: Cross multiply
    826,853.60x = 1,240,280.40 × 815,794.40
  4. Step 4: Simplify right side
    826,853.60x = 1,011,813,804,749.76
  5. Step 5: Solve for x
    x = 1,011,813,804,749.76/826,853.60
  6. Step 6: Final answer
    x = 1,223,691.60

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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.