Home / 783,126.32-1,080,627.65-434,257.95

Finding the Fourth Proportional to 783,126.32, 1,080,627.65 and 434,257.95

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Solution

The fourth proportional to 783,126.32, 1,080,627.65 and 434,257.95 is: 599,227.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,126.32 : 1,080,627.65 = 434,257.95 : x
  2. Step 2: Convert to fraction form
    783,126.32/1,080,627.65 = 434,257.95/x
  3. Step 3: Cross multiply
    783,126.32x = 1,080,627.65 × 434,257.95
  4. Step 4: Simplify right side
    783,126.32x = 469,271,140,427.89
  5. Step 5: Solve for x
    x = 469,271,140,427.89/783,126.32
  6. Step 6: Final answer
    x = 599,227.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.