Home / 778,540.59-1,074,386.21-439,008.93

Finding the Fourth Proportional to 778,540.59, 1,074,386.21 and 439,008.93

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Solution

The fourth proportional to 778,540.59, 1,074,386.21 and 439,008.93 is: 605,832.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,540.59 : 1,074,386.21 = 439,008.93 : x
  2. Step 2: Convert to fraction form
    778,540.59/1,074,386.21 = 439,008.93/x
  3. Step 3: Cross multiply
    778,540.59x = 1,074,386.21 × 439,008.93
  4. Step 4: Simplify right side
    778,540.59x = 471,665,138,263.81
  5. Step 5: Solve for x
    x = 471,665,138,263.81/778,540.59
  6. Step 6: Final answer
    x = 605,832.43

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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.