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Finding the Fourth Proportional to 575,280.66, 863,045.55 and 220,294.69

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Solution

The fourth proportional to 575,280.66, 863,045.55 and 220,294.69 is: 330,489.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,280.66 : 863,045.55 = 220,294.69 : x
  2. Step 2: Convert to fraction form
    575,280.66/863,045.55 = 220,294.69/x
  3. Step 3: Cross multiply
    575,280.66x = 863,045.55 × 220,294.69
  4. Step 4: Simplify right side
    575,280.66x = 190,124,352,971.94
  5. Step 5: Solve for x
    x = 190,124,352,971.94/575,280.66
  6. Step 6: Final answer
    x = 330,489.74

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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.