Home / 761,020.41-1,050,205.55-438,728.97

Finding the Fourth Proportional to 761,020.41, 1,050,205.55 and 438,728.97

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Solution

The fourth proportional to 761,020.41, 1,050,205.55 and 438,728.97 is: 605,444.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,020.41 : 1,050,205.55 = 438,728.97 : x
  2. Step 2: Convert to fraction form
    761,020.41/1,050,205.55 = 438,728.97/x
  3. Step 3: Cross multiply
    761,020.41x = 1,050,205.55 × 438,728.97
  4. Step 4: Simplify right side
    761,020.41x = 460,755,597,046.14
  5. Step 5: Solve for x
    x = 460,755,597,046.14/761,020.41
  6. Step 6: Final answer
    x = 605,444.47

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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.