Home / 1,345,536.42-2,017,960.80-398,685.72

Finding the Fourth Proportional to 1,345,536.42, 2,017,960.80 and 398,685.72

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Solution

The fourth proportional to 1,345,536.42, 2,017,960.80 and 398,685.72 is: 597,926.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,536.42 : 2,017,960.80 = 398,685.72 : x
  2. Step 2: Convert to fraction form
    1,345,536.42/2,017,960.80 = 398,685.72/x
  3. Step 3: Cross multiply
    1,345,536.42x = 2,017,960.80 × 398,685.72
  4. Step 4: Simplify right side
    1,345,536.42x = 804,532,154,479.78
  5. Step 5: Solve for x
    x = 804,532,154,479.78/1,345,536.42
  6. Step 6: Final answer
    x = 597,926.70

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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.