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Finding the Fourth Proportional to 553,862.68, 830,800.68 and 154,479.13

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Solution

The fourth proportional to 553,862.68, 830,800.68 and 154,479.13 is: 231,720.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,862.68 : 830,800.68 = 154,479.13 : x
  2. Step 2: Convert to fraction form
    553,862.68/830,800.68 = 154,479.13/x
  3. Step 3: Cross multiply
    553,862.68x = 830,800.68 × 154,479.13
  4. Step 4: Simplify right side
    553,862.68x = 128,341,366,249.81
  5. Step 5: Solve for x
    x = 128,341,366,249.81/553,862.68
  6. Step 6: Final answer
    x = 231,720.55

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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.