Home / 765,145.80-1,147,718.70-410,851.80

Finding the Fourth Proportional to 765,145.80, 1,147,718.70 and 410,851.80

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Solution

The fourth proportional to 765,145.80, 1,147,718.70 and 410,851.80 is: 616,277.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,145.80 : 1,147,718.70 = 410,851.80 : x
  2. Step 2: Convert to fraction form
    765,145.80/1,147,718.70 = 410,851.80/x
  3. Step 3: Cross multiply
    765,145.80x = 1,147,718.70 × 410,851.80
  4. Step 4: Simplify right side
    765,145.80x = 471,542,293,788.66
  5. Step 5: Solve for x
    x = 471,542,293,788.66/765,145.80
  6. Step 6: Final answer
    x = 616,277.70

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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.