Home / 761,251.08-1,050,449.94-421,655.88

Finding the Fourth Proportional to 761,251.08, 1,050,449.94 and 421,655.88

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Solution

The fourth proportional to 761,251.08, 1,050,449.94 and 421,655.88 is: 581,842.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,251.08 : 1,050,449.94 = 421,655.88 : x
  2. Step 2: Convert to fraction form
    761,251.08/1,050,449.94 = 421,655.88/x
  3. Step 3: Cross multiply
    761,251.08x = 1,050,449.94 × 421,655.88
  4. Step 4: Simplify right side
    761,251.08x = 442,928,393,846.65
  5. Step 5: Solve for x
    x = 442,928,393,846.65/761,251.08
  6. Step 6: Final answer
    x = 581,842.71

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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.