Home / 564,456.56-778,949.04-322,743.68

Finding the Fourth Proportional to 564,456.56, 778,949.04 and 322,743.68

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Solution

The fourth proportional to 564,456.56, 778,949.04 and 322,743.68 is: 445,385.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,456.56 : 778,949.04 = 322,743.68 : x
  2. Step 2: Convert to fraction form
    564,456.56/778,949.04 = 322,743.68/x
  3. Step 3: Cross multiply
    564,456.56x = 778,949.04 × 322,743.68
  4. Step 4: Simplify right side
    564,456.56x = 251,400,879,702.07
  5. Step 5: Solve for x
    x = 251,400,879,702.07/564,456.56
  6. Step 6: Final answer
    x = 445,385.70

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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.