Home / 868,939.20-1,199,184-487,088.64

Finding the Fourth Proportional to 868,939.20, 1,199,184 and 487,088.64

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Solution

The fourth proportional to 868,939.20, 1,199,184 and 487,088.64 is: 672,209.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,939.20 : 1,199,184 = 487,088.64 : x
  2. Step 2: Convert to fraction form
    868,939.20/1,199,184 = 487,088.64/x
  3. Step 3: Cross multiply
    868,939.20x = 1,199,184 × 487,088.64
  4. Step 4: Simplify right side
    868,939.20x = 584,108,903,669.76
  5. Step 5: Solve for x
    x = 584,108,903,669.76/868,939.20
  6. Step 6: Final answer
    x = 672,209.18

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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.