Home / 641,483.18-885,274.57-355,003.35

Finding the Fourth Proportional to 641,483.18, 885,274.57 and 355,003.35

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Solution

The fourth proportional to 641,483.18, 885,274.57 and 355,003.35 is: 489,920.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,483.18 : 885,274.57 = 355,003.35 : x
  2. Step 2: Convert to fraction form
    641,483.18/885,274.57 = 355,003.35/x
  3. Step 3: Cross multiply
    641,483.18x = 885,274.57 × 355,003.35
  4. Step 4: Simplify right side
    641,483.18x = 314,275,436,244.79
  5. Step 5: Solve for x
    x = 314,275,436,244.79/641,483.18
  6. Step 6: Final answer
    x = 489,920.00

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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.