Home / 644,922.80-967,384.20-408,532.40

Finding the Fourth Proportional to 644,922.80, 967,384.20 and 408,532.40

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Solution

The fourth proportional to 644,922.80, 967,384.20 and 408,532.40 is: 612,798.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,922.80 : 967,384.20 = 408,532.40 : x
  2. Step 2: Convert to fraction form
    644,922.80/967,384.20 = 408,532.40/x
  3. Step 3: Cross multiply
    644,922.80x = 967,384.20 × 408,532.40
  4. Step 4: Simplify right side
    644,922.80x = 395,207,788,948.08
  5. Step 5: Solve for x
    x = 395,207,788,948.08/644,922.80
  6. Step 6: Final answer
    x = 612,798.60

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1.5x scale

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.