Home / 498,981.78-688,595.16-269,539.10

Finding the Fourth Proportional to 498,981.78, 688,595.16 and 269,539.10

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Solution

The fourth proportional to 498,981.78, 688,595.16 and 269,539.10 is: 371,964.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,981.78 : 688,595.16 = 269,539.10 : x
  2. Step 2: Convert to fraction form
    498,981.78/688,595.16 = 269,539.10/x
  3. Step 3: Cross multiply
    498,981.78x = 688,595.16 × 269,539.10
  4. Step 4: Simplify right side
    498,981.78x = 185,603,316,247.78
  5. Step 5: Solve for x
    x = 185,603,316,247.78/498,981.78
  6. Step 6: Final answer
    x = 371,964.12

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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.