Home / 787,515.90-1,182,148.65-488,334.30

Finding the Fourth Proportional to 787,515.90, 1,182,148.65 and 488,334.30

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Solution

The fourth proportional to 787,515.90, 1,182,148.65 and 488,334.30 is: 733,043.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,515.90 : 1,182,148.65 = 488,334.30 : x
  2. Step 2: Convert to fraction form
    787,515.90/1,182,148.65 = 488,334.30/x
  3. Step 3: Cross multiply
    787,515.90x = 1,182,148.65 × 488,334.30
  4. Step 4: Simplify right side
    787,515.90x = 577,283,733,493.70
  5. Step 5: Solve for x
    x = 577,283,733,493.70/787,515.90
  6. Step 6: Final answer
    x = 733,043.91

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Double scale
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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.