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Finding the Fourth Proportional to 498,969.60, 688,578.32 and 269,526.89

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Solution

The fourth proportional to 498,969.60, 688,578.32 and 269,526.89 is: 371,947.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,969.60 : 688,578.32 = 269,526.89 : x
  2. Step 2: Convert to fraction form
    498,969.60/688,578.32 = 269,526.89/x
  3. Step 3: Cross multiply
    498,969.60x = 688,578.32 × 269,526.89
  4. Step 4: Simplify right side
    498,969.60x = 185,590,368,320.50
  5. Step 5: Solve for x
    x = 185,590,368,320.50/498,969.60
  6. Step 6: Final answer
    x = 371,947.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.