Home / 489,110.94-674,686.41-307,535.10

Finding the Fourth Proportional to 489,110.94, 674,686.41 and 307,535.10

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Solution

The fourth proportional to 489,110.94, 674,686.41 and 307,535.10 is: 424,218.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,110.94 : 674,686.41 = 307,535.10 : x
  2. Step 2: Convert to fraction form
    489,110.94/674,686.41 = 307,535.10/x
  3. Step 3: Cross multiply
    489,110.94x = 674,686.41 × 307,535.10
  4. Step 4: Simplify right side
    489,110.94x = 207,489,752,567.99
  5. Step 5: Solve for x
    x = 207,489,752,567.99/489,110.94
  6. Step 6: Final answer
    x = 424,218.18

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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.