Home / 896,743.80-1,345,115.70-780,103.80

Finding the Fourth Proportional to 896,743.80, 1,345,115.70 and 780,103.80

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Solution

The fourth proportional to 896,743.80, 1,345,115.70 and 780,103.80 is: 1,170,155.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    896,743.80 : 1,345,115.70 = 780,103.80 : x
  2. Step 2: Convert to fraction form
    896,743.80/1,345,115.70 = 780,103.80/x
  3. Step 3: Cross multiply
    896,743.80x = 1,345,115.70 × 780,103.80
  4. Step 4: Simplify right side
    896,743.80x = 1,049,329,869,009.66
  5. Step 5: Solve for x
    x = 1,049,329,869,009.66/896,743.80
  6. Step 6: Final answer
    x = 1,170,155.70

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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.