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Finding the Fourth Proportional to 528,770.28, 793,155.40 and 154,793.28

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Solution

The fourth proportional to 528,770.28, 793,155.40 and 154,793.28 is: 232,189.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,770.28 : 793,155.40 = 154,793.28 : x
  2. Step 2: Convert to fraction form
    528,770.28/793,155.40 = 154,793.28/x
  3. Step 3: Cross multiply
    528,770.28x = 793,155.40 × 154,793.28
  4. Step 4: Simplify right side
    528,770.28x = 122,775,125,915.71
  5. Step 5: Solve for x
    x = 122,775,125,915.71/528,770.28
  6. Step 6: Final answer
    x = 232,189.91

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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.