Home / 787,453.60-1,180,402.80-387,767.20

Finding the Fourth Proportional to 787,453.60, 1,180,402.80 and 387,767.20

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Solution

The fourth proportional to 787,453.60, 1,180,402.80 and 387,767.20 is: 581,267.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,453.60 : 1,180,402.80 = 387,767.20 : x
  2. Step 2: Convert to fraction form
    787,453.60/1,180,402.80 = 387,767.20/x
  3. Step 3: Cross multiply
    787,453.60x = 1,180,402.80 × 387,767.20
  4. Step 4: Simplify right side
    787,453.60x = 457,721,488,628.16
  5. Step 5: Solve for x
    x = 457,721,488,628.16/787,453.60
  6. Step 6: Final answer
    x = 581,267.89

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1.5x scale

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.