Home / 920,860.57-1,270,618.95-512,952.27

Finding the Fourth Proportional to 920,860.57, 1,270,618.95 and 512,952.27

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Solution

The fourth proportional to 920,860.57, 1,270,618.95 and 512,952.27 is: 707,780.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,860.57 : 1,270,618.95 = 512,952.27 : x
  2. Step 2: Convert to fraction form
    920,860.57/1,270,618.95 = 512,952.27/x
  3. Step 3: Cross multiply
    920,860.57x = 1,270,618.95 × 512,952.27
  4. Step 4: Simplify right side
    920,860.57x = 651,766,874,707.52
  5. Step 5: Solve for x
    x = 651,766,874,707.52/920,860.57
  6. Step 6: Final answer
    x = 707,780.20

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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.