Home / 849,380.10-1,172,111.52-486,545.86

Finding the Fourth Proportional to 849,380.10, 1,172,111.52 and 486,545.86

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Solution

The fourth proportional to 849,380.10, 1,172,111.52 and 486,545.86 is: 671,414.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,380.10 : 1,172,111.52 = 486,545.86 : x
  2. Step 2: Convert to fraction form
    849,380.10/1,172,111.52 = 486,545.86/x
  3. Step 3: Cross multiply
    849,380.10x = 1,172,111.52 × 486,545.86
  4. Step 4: Simplify right side
    849,380.10x = 570,286,007,514.31
  5. Step 5: Solve for x
    x = 570,286,007,514.31/849,380.10
  6. Step 6: Final answer
    x = 671,414.37

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1.5x scale

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.