Home / 761,695.20-1,050,661.40-490,115.97

Finding the Fourth Proportional to 761,695.20, 1,050,661.40 and 490,115.97

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Solution

The fourth proportional to 761,695.20, 1,050,661.40 and 490,115.97 is: 676,052.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,695.20 : 1,050,661.40 = 490,115.97 : x
  2. Step 2: Convert to fraction form
    761,695.20/1,050,661.40 = 490,115.97/x
  3. Step 3: Cross multiply
    761,695.20x = 1,050,661.40 × 490,115.97
  4. Step 4: Simplify right side
    761,695.20x = 514,945,928,751.98
  5. Step 5: Solve for x
    x = 514,945,928,751.98/761,695.20
  6. Step 6: Final answer
    x = 676,052.48

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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.