Home / 629,948.16-943,988.76-518,420.88

Finding the Fourth Proportional to 629,948.16, 943,988.76 and 518,420.88

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Solution

The fourth proportional to 629,948.16, 943,988.76 and 518,420.88 is: 776,863.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,948.16 : 943,988.76 = 518,420.88 : x
  2. Step 2: Convert to fraction form
    629,948.16/943,988.76 = 518,420.88/x
  3. Step 3: Cross multiply
    629,948.16x = 943,988.76 × 518,420.88
  4. Step 4: Simplify right side
    629,948.16x = 489,383,483,669.31
  5. Step 5: Solve for x
    x = 489,383,483,669.31/629,948.16
  6. Step 6: Final answer
    x = 776,863.11

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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.