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Finding the Fourth Proportional to 519,624.40, 779,695.80 and 295,157.20

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Solution

The fourth proportional to 519,624.40, 779,695.80 and 295,157.20 is: 442,883.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,624.40 : 779,695.80 = 295,157.20 : x
  2. Step 2: Convert to fraction form
    519,624.40/779,695.80 = 295,157.20/x
  3. Step 3: Cross multiply
    519,624.40x = 779,695.80 × 295,157.20
  4. Step 4: Simplify right side
    519,624.40x = 230,132,829,179.76
  5. Step 5: Solve for x
    x = 230,132,829,179.76/519,624.40
  6. Step 6: Final answer
    x = 442,883.03

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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.