Home / 865,496.10-1,297,967.13-288,995.61

Finding the Fourth Proportional to 865,496.10, 1,297,967.13 and 288,995.61

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Solution

The fourth proportional to 865,496.10, 1,297,967.13 and 288,995.61 is: 433,400.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,496.10 : 1,297,967.13 = 288,995.61 : x
  2. Step 2: Convert to fraction form
    865,496.10/1,297,967.13 = 288,995.61/x
  3. Step 3: Cross multiply
    865,496.10x = 1,297,967.13 × 288,995.61
  4. Step 4: Simplify right side
    865,496.10x = 375,106,802,494.30
  5. Step 5: Solve for x
    x = 375,106,802,494.30/865,496.10
  6. Step 6: Final answer
    x = 433,400.92

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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.