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Finding the Fourth Proportional to 583,699.28, 872,880.78 and 424,310.72

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Solution

The fourth proportional to 583,699.28, 872,880.78 and 424,310.72 is: 634,526.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,699.28 : 872,880.78 = 424,310.72 : x
  2. Step 2: Convert to fraction form
    583,699.28/872,880.78 = 424,310.72/x
  3. Step 3: Cross multiply
    583,699.28x = 872,880.78 × 424,310.72
  4. Step 4: Simplify right side
    583,699.28x = 370,372,672,235.96
  5. Step 5: Solve for x
    x = 370,372,672,235.96/583,699.28
  6. Step 6: Final answer
    x = 634,526.52

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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.