Home / 489,310.80-733,966.20-340,011.60

Finding the Fourth Proportional to 489,310.80, 733,966.20 and 340,011.60

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Solution

The fourth proportional to 489,310.80, 733,966.20 and 340,011.60 is: 510,017.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,310.80 : 733,966.20 = 340,011.60 : x
  2. Step 2: Convert to fraction form
    489,310.80/733,966.20 = 340,011.60/x
  3. Step 3: Cross multiply
    489,310.80x = 733,966.20 × 340,011.60
  4. Step 4: Simplify right side
    489,310.80x = 249,557,022,007.92
  5. Step 5: Solve for x
    x = 249,557,022,007.92/489,310.80
  6. Step 6: Final answer
    x = 510,017.40

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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.