Home / 761,251.68-1,050,442.56-421,634.88

Finding the Fourth Proportional to 761,251.68, 1,050,442.56 and 421,634.88

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Solution

The fourth proportional to 761,251.68, 1,050,442.56 and 421,634.88 is: 581,809.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,251.68 : 1,050,442.56 = 421,634.88 : x
  2. Step 2: Convert to fraction form
    761,251.68/1,050,442.56 = 421,634.88/x
  3. Step 3: Cross multiply
    761,251.68x = 1,050,442.56 × 421,634.88
  4. Step 4: Simplify right side
    761,251.68x = 442,903,222,732.49
  5. Step 5: Solve for x
    x = 442,903,222,732.49/761,251.68
  6. Step 6: Final answer
    x = 581,809.19

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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.