Home / 1,398,275.84-2,097,458.85-387,407.54

Finding the Fourth Proportional to 1,398,275.84, 2,097,458.85 and 387,407.54

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Solution

The fourth proportional to 1,398,275.84, 2,097,458.85 and 387,407.54 is: 581,123.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,275.84 : 2,097,458.85 = 387,407.54 : x
  2. Step 2: Convert to fraction form
    1,398,275.84/2,097,458.85 = 387,407.54/x
  3. Step 3: Cross multiply
    1,398,275.84x = 2,097,458.85 × 387,407.54
  4. Step 4: Simplify right side
    1,398,275.84x = 812,571,373,329.73
  5. Step 5: Solve for x
    x = 812,571,373,329.73/1,398,275.84
  6. Step 6: Final answer
    x = 581,123.80

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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.