Home / 1,626,357.93-2,439,656.73-428,271.95

Finding the Fourth Proportional to 1,626,357.93, 2,439,656.73 and 428,271.95

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Solution

The fourth proportional to 1,626,357.93, 2,439,656.73 and 428,271.95 is: 642,439.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,626,357.93 : 2,439,656.73 = 428,271.95 : x
  2. Step 2: Convert to fraction form
    1,626,357.93/2,439,656.73 = 428,271.95/x
  3. Step 3: Cross multiply
    1,626,357.93x = 2,439,656.73 × 428,271.95
  4. Step 4: Simplify right side
    1,626,357.93x = 1,044,836,532,889.44
  5. Step 5: Solve for x
    x = 1,044,836,532,889.44/1,626,357.93
  6. Step 6: Final answer
    x = 642,439.47

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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.