Home / 743,589.18-1,026,069.78-421,230.24

Finding the Fourth Proportional to 743,589.18, 1,026,069.78 and 421,230.24

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Solution

The fourth proportional to 743,589.18, 1,026,069.78 and 421,230.24 is: 581,250.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,589.18 : 1,026,069.78 = 421,230.24 : x
  2. Step 2: Convert to fraction form
    743,589.18/1,026,069.78 = 421,230.24/x
  3. Step 3: Cross multiply
    743,589.18x = 1,026,069.78 × 421,230.24
  4. Step 4: Simplify right side
    743,589.18x = 432,211,619,686.15
  5. Step 5: Solve for x
    x = 432,211,619,686.15/743,589.18
  6. Step 6: Final answer
    x = 581,250.55

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Double scale
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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.