Home / 1,307,839.20-1,960,300.80-508,855.20

Finding the Fourth Proportional to 1,307,839.20, 1,960,300.80 and 508,855.20

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Solution

The fourth proportional to 1,307,839.20, 1,960,300.80 and 508,855.20 is: 762,715.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,307,839.20 : 1,960,300.80 = 508,855.20 : x
  2. Step 2: Convert to fraction form
    1,307,839.20/1,960,300.80 = 508,855.20/x
  3. Step 3: Cross multiply
    1,307,839.20x = 1,960,300.80 × 508,855.20
  4. Step 4: Simplify right side
    1,307,839.20x = 997,509,255,644.16
  5. Step 5: Solve for x
    x = 997,509,255,644.16/1,307,839.20
  6. Step 6: Final answer
    x = 762,715.52

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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.