Home / 761,479.32-1,050,783.66-421,940.28

Finding the Fourth Proportional to 761,479.32, 1,050,783.66 and 421,940.28

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Solution

The fourth proportional to 761,479.32, 1,050,783.66 and 421,940.28 is: 582,245.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,479.32 : 1,050,783.66 = 421,940.28 : x
  2. Step 2: Convert to fraction form
    761,479.32/1,050,783.66 = 421,940.28/x
  3. Step 3: Cross multiply
    761,479.32x = 1,050,783.66 × 421,940.28
  4. Step 4: Simplify right side
    761,479.32x = 443,367,951,719.83
  5. Step 5: Solve for x
    x = 443,367,951,719.83/761,479.32
  6. Step 6: Final answer
    x = 582,245.56

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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.