Home / 744,761.85-1,027,614.54-487,016.61

Finding the Fourth Proportional to 744,761.85, 1,027,614.54 and 487,016.61

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Solution

The fourth proportional to 744,761.85, 1,027,614.54 and 487,016.61 is: 671,980.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,761.85 : 1,027,614.54 = 487,016.61 : x
  2. Step 2: Convert to fraction form
    744,761.85/1,027,614.54 = 487,016.61/x
  3. Step 3: Cross multiply
    744,761.85x = 1,027,614.54 × 487,016.61
  4. Step 4: Simplify right side
    744,761.85x = 500,465,349,657.51
  5. Step 5: Solve for x
    x = 500,465,349,657.51/744,761.85
  6. Step 6: Final answer
    x = 671,980.38

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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.