Home / 760,819.64-1,049,931.02-421,287.88

Finding the Fourth Proportional to 760,819.64, 1,049,931.02 and 421,287.88

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Solution

The fourth proportional to 760,819.64, 1,049,931.02 and 421,287.88 is: 581,377.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,819.64 : 1,049,931.02 = 421,287.88 : x
  2. Step 2: Convert to fraction form
    760,819.64/1,049,931.02 = 421,287.88/x
  3. Step 3: Cross multiply
    760,819.64x = 1,049,931.02 × 421,287.88
  4. Step 4: Simplify right side
    760,819.64x = 442,323,213,562.04
  5. Step 5: Solve for x
    x = 442,323,213,562.04/760,819.64
  6. Step 6: Final answer
    x = 581,377.23

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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.