Home / 761,326.62-1,050,585.21-421,770.30

Finding the Fourth Proportional to 761,326.62, 1,050,585.21 and 421,770.30

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Solution

The fourth proportional to 761,326.62, 1,050,585.21 and 421,770.30 is: 582,017.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,326.62 : 1,050,585.21 = 421,770.30 : x
  2. Step 2: Convert to fraction form
    761,326.62/1,050,585.21 = 421,770.30/x
  3. Step 3: Cross multiply
    761,326.62x = 1,050,585.21 × 421,770.30
  4. Step 4: Simplify right side
    761,326.62x = 443,105,639,197.26
  5. Step 5: Solve for x
    x = 443,105,639,197.26/761,326.62
  6. Step 6: Final answer
    x = 582,017.79

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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.