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Finding the Fourth Proportional to 553,862.55, 830,800.41 and 154,479.03

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Solution

The fourth proportional to 553,862.55, 830,800.41 and 154,479.03 is: 231,720.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,862.55 : 830,800.41 = 154,479.03 : x
  2. Step 2: Convert to fraction form
    553,862.55/830,800.41 = 154,479.03/x
  3. Step 3: Cross multiply
    553,862.55x = 830,800.41 × 154,479.03
  4. Step 4: Simplify right side
    553,862.55x = 128,341,241,460.40
  5. Step 5: Solve for x
    x = 128,341,241,460.40/553,862.55
  6. Step 6: Final answer
    x = 231,720.38

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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.