Home / 670,715.40-1,006,073.10-172,079.40

Finding the Fourth Proportional to 670,715.40, 1,006,073.10 and 172,079.40

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Solution

The fourth proportional to 670,715.40, 1,006,073.10 and 172,079.40 is: 258,119.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,715.40 : 1,006,073.10 = 172,079.40 : x
  2. Step 2: Convert to fraction form
    670,715.40/1,006,073.10 = 172,079.40/x
  3. Step 3: Cross multiply
    670,715.40x = 1,006,073.10 × 172,079.40
  4. Step 4: Simplify right side
    670,715.40x = 173,124,455,404.14
  5. Step 5: Solve for x
    x = 173,124,455,404.14/670,715.40
  6. Step 6: Final answer
    x = 258,119.10

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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.