Home / 778,352.67-1,074,124.91-438,818.49

Finding the Fourth Proportional to 778,352.67, 1,074,124.91 and 438,818.49

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Solution

The fourth proportional to 778,352.67, 1,074,124.91 and 438,818.49 is: 605,568.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,352.67 : 1,074,124.91 = 438,818.49 : x
  2. Step 2: Convert to fraction form
    778,352.67/1,074,124.91 = 438,818.49/x
  3. Step 3: Cross multiply
    778,352.67x = 1,074,124.91 × 438,818.49
  4. Step 4: Simplify right side
    778,352.67x = 471,345,872,174.63
  5. Step 5: Solve for x
    x = 471,345,872,174.63/778,352.67
  6. Step 6: Final answer
    x = 605,568.52

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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.