Home / 1,172,117.90-1,758,176.85-1,124,878.70

Finding the Fourth Proportional to 1,172,117.90, 1,758,176.85 and 1,124,878.70

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Solution

The fourth proportional to 1,172,117.90, 1,758,176.85 and 1,124,878.70 is: 1,687,318.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,172,117.90 : 1,758,176.85 = 1,124,878.70 : x
  2. Step 2: Convert to fraction form
    1,172,117.90/1,758,176.85 = 1,124,878.70/x
  3. Step 3: Cross multiply
    1,172,117.90x = 1,758,176.85 × 1,124,878.70
  4. Step 4: Simplify right side
    1,172,117.90x = 1,977,735,689,398.10
  5. Step 5: Solve for x
    x = 1,977,735,689,398.10/1,172,117.90
  6. Step 6: Final answer
    x = 1,687,318.05

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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.