Home / 813,050.16-1,218,924-386,371.86

Finding the Fourth Proportional to 813,050.16, 1,218,924 and 386,371.86

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Solution

The fourth proportional to 813,050.16, 1,218,924 and 386,371.86 is: 579,248.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,050.16 : 1,218,924 = 386,371.86 : x
  2. Step 2: Convert to fraction form
    813,050.16/1,218,924 = 386,371.86/x
  3. Step 3: Cross multiply
    813,050.16x = 1,218,924 × 386,371.86
  4. Step 4: Simplify right side
    813,050.16x = 470,957,933,078.64
  5. Step 5: Solve for x
    x = 470,957,933,078.64/813,050.16
  6. Step 6: Final answer
    x = 579,248.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.