Home / 423,377.76-584,746.20-278,829.69

Finding the Fourth Proportional to 423,377.76, 584,746.20 and 278,829.69

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Solution

The fourth proportional to 423,377.76, 584,746.20 and 278,829.69 is: 385,104.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,377.76 : 584,746.20 = 278,829.69 : x
  2. Step 2: Convert to fraction form
    423,377.76/584,746.20 = 278,829.69/x
  3. Step 3: Cross multiply
    423,377.76x = 584,746.20 × 278,829.69
  4. Step 4: Simplify right side
    423,377.76x = 163,044,597,356.80
  5. Step 5: Solve for x
    x = 163,044,597,356.80/423,377.76
  6. Step 6: Final answer
    x = 385,104.31

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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.