Home / 761,370.32-1,050,691.56-421,844.24

Finding the Fourth Proportional to 761,370.32, 1,050,691.56 and 421,844.24

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Solution

The fourth proportional to 761,370.32, 1,050,691.56 and 421,844.24 is: 582,145.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,370.32 : 1,050,691.56 = 421,844.24 : x
  2. Step 2: Convert to fraction form
    761,370.32/1,050,691.56 = 421,844.24/x
  3. Step 3: Cross multiply
    761,370.32x = 1,050,691.56 × 421,844.24
  4. Step 4: Simplify right side
    761,370.32x = 443,228,182,602.61
  5. Step 5: Solve for x
    x = 443,228,182,602.61/761,370.32
  6. Step 6: Final answer
    x = 582,145.34

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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.