Home / 712,947.60-1,069,583.40-239,680.80

Finding the Fourth Proportional to 712,947.60, 1,069,583.40 and 239,680.80

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Solution

The fourth proportional to 712,947.60, 1,069,583.40 and 239,680.80 is: 359,575.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,947.60 : 1,069,583.40 = 239,680.80 : x
  2. Step 2: Convert to fraction form
    712,947.60/1,069,583.40 = 239,680.80/x
  3. Step 3: Cross multiply
    712,947.60x = 1,069,583.40 × 239,680.80
  4. Step 4: Simplify right side
    712,947.60x = 256,358,604,978.72
  5. Step 5: Solve for x
    x = 256,358,604,978.72/712,947.60
  6. Step 6: Final answer
    x = 359,575.66

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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.