Home / 778,208.76-1,073,929.86-438,677.01

Finding the Fourth Proportional to 778,208.76, 1,073,929.86 and 438,677.01

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Solution

The fourth proportional to 778,208.76, 1,073,929.86 and 438,677.01 is: 605,375.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,208.76 : 1,073,929.86 = 438,677.01 : x
  2. Step 2: Convert to fraction form
    778,208.76/1,073,929.86 = 438,677.01/x
  3. Step 3: Cross multiply
    778,208.76x = 1,073,929.86 × 438,677.01
  4. Step 4: Simplify right side
    778,208.76x = 471,108,339,934.52
  5. Step 5: Solve for x
    x = 471,108,339,934.52/778,208.76
  6. Step 6: Final answer
    x = 605,375.27

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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.