Home / 868,801.86-1,198,979.01-486,814.50

Finding the Fourth Proportional to 868,801.86, 1,198,979.01 and 486,814.50

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Solution

The fourth proportional to 868,801.86, 1,198,979.01 and 486,814.50 is: 671,822.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,801.86 : 1,198,979.01 = 486,814.50 : x
  2. Step 2: Convert to fraction form
    868,801.86/1,198,979.01 = 486,814.50/x
  3. Step 3: Cross multiply
    868,801.86x = 1,198,979.01 × 486,814.50
  4. Step 4: Simplify right side
    868,801.86x = 583,680,367,263.65
  5. Step 5: Solve for x
    x = 583,680,367,263.65/868,801.86
  6. Step 6: Final answer
    x = 671,822.19

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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.