Home / 868,931.12-1,199,159.16-486,954.56

Finding the Fourth Proportional to 868,931.12, 1,199,159.16 and 486,954.56

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Solution

The fourth proportional to 868,931.12, 1,199,159.16 and 486,954.56 is: 672,016.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,931.12 : 1,199,159.16 = 486,954.56 : x
  2. Step 2: Convert to fraction form
    868,931.12/1,199,159.16 = 486,954.56/x
  3. Step 3: Cross multiply
    868,931.12x = 1,199,159.16 × 486,954.56
  4. Step 4: Simplify right side
    868,931.12x = 583,936,021,127.77
  5. Step 5: Solve for x
    x = 583,936,021,127.77/868,931.12
  6. Step 6: Final answer
    x = 672,016.47

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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.