Home / 1,587,417.60-2,378,793.60-639,134.40

Finding the Fourth Proportional to 1,587,417.60, 2,378,793.60 and 639,134.40

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Solution

The fourth proportional to 1,587,417.60, 2,378,793.60 and 639,134.40 is: 957,762.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587,417.60 : 2,378,793.60 = 639,134.40 : x
  2. Step 2: Convert to fraction form
    1,587,417.60/2,378,793.60 = 639,134.40/x
  3. Step 3: Cross multiply
    1,587,417.60x = 2,378,793.60 × 639,134.40
  4. Step 4: Simplify right side
    1,587,417.60x = 1,520,368,820,259.84
  5. Step 5: Solve for x
    x = 1,520,368,820,259.84/1,587,417.60
  6. Step 6: Final answer
    x = 957,762.36

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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.