Home / 1,626,343.68-2,439,656.46-428,256.48

Finding the Fourth Proportional to 1,626,343.68, 2,439,656.46 and 428,256.48

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Solution

The fourth proportional to 1,626,343.68, 2,439,656.46 and 428,256.48 is: 642,421.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,626,343.68 : 2,439,656.46 = 428,256.48 : x
  2. Step 2: Convert to fraction form
    1,626,343.68/2,439,656.46 = 428,256.48/x
  3. Step 3: Cross multiply
    1,626,343.68x = 2,439,656.46 × 428,256.48
  4. Step 4: Simplify right side
    1,626,343.68x = 1,044,798,687,968.86
  5. Step 5: Solve for x
    x = 1,044,798,687,968.86/1,626,343.68
  6. Step 6: Final answer
    x = 642,421.83

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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.