Home / 678,176.10-1,017,264.15-204,812.10

Finding the Fourth Proportional to 678,176.10, 1,017,264.15 and 204,812.10

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Solution

The fourth proportional to 678,176.10, 1,017,264.15 and 204,812.10 is: 307,218.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,176.10 : 1,017,264.15 = 204,812.10 : x
  2. Step 2: Convert to fraction form
    678,176.10/1,017,264.15 = 204,812.10/x
  3. Step 3: Cross multiply
    678,176.10x = 1,017,264.15 × 204,812.10
  4. Step 4: Simplify right side
    678,176.10x = 208,348,006,816.22
  5. Step 5: Solve for x
    x = 208,348,006,816.22/678,176.10
  6. Step 6: Final answer
    x = 307,218.15

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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.