Home / 1,026,375.60-1,540,438.20-458,630.40

Finding the Fourth Proportional to 1,026,375.60, 1,540,438.20 and 458,630.40

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Solution

The fourth proportional to 1,026,375.60, 1,540,438.20 and 458,630.40 is: 688,336.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,026,375.60 : 1,540,438.20 = 458,630.40 : x
  2. Step 2: Convert to fraction form
    1,026,375.60/1,540,438.20 = 458,630.40/x
  3. Step 3: Cross multiply
    1,026,375.60x = 1,540,438.20 × 458,630.40
  4. Step 4: Simplify right side
    1,026,375.60x = 706,491,787,841.28
  5. Step 5: Solve for x
    x = 706,491,787,841.28/1,026,375.60
  6. Step 6: Final answer
    x = 688,336.50

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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.