Home / 625,688.40-938,532.59-288,629.33

Finding the Fourth Proportional to 625,688.40, 938,532.59 and 288,629.33

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Solution

The fourth proportional to 625,688.40, 938,532.59 and 288,629.33 is: 432,943.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,688.40 : 938,532.59 = 288,629.33 : x
  2. Step 2: Convert to fraction form
    625,688.40/938,532.59 = 288,629.33/x
  3. Step 3: Cross multiply
    625,688.40x = 938,532.59 × 288,629.33
  4. Step 4: Simplify right side
    625,688.40x = 270,888,027,581.42
  5. Step 5: Solve for x
    x = 270,888,027,581.42/625,688.40
  6. Step 6: Final answer
    x = 432,943.98

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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.