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Finding the Fourth Proportional to 575,438.04, 863,281.53 and 220,451.76

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Solution

The fourth proportional to 575,438.04, 863,281.53 and 220,451.76 is: 330,725.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,438.04 : 863,281.53 = 220,451.76 : x
  2. Step 2: Convert to fraction form
    575,438.04/863,281.53 = 220,451.76/x
  3. Step 3: Cross multiply
    575,438.04x = 863,281.53 × 220,451.76
  4. Step 4: Simplify right side
    575,438.04x = 190,311,932,663.99
  5. Step 5: Solve for x
    x = 190,311,932,663.99/575,438.04
  6. Step 6: Final answer
    x = 330,725.32

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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.