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Finding the Fourth Proportional to 874,903.68, 1,312,486.20 and 275,801.76

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Solution

The fourth proportional to 874,903.68, 1,312,486.20 and 275,801.76 is: 413,743.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,903.68 : 1,312,486.20 = 275,801.76 : x
  2. Step 2: Convert to fraction form
    874,903.68/1,312,486.20 = 275,801.76/x
  3. Step 3: Cross multiply
    874,903.68x = 1,312,486.20 × 275,801.76
  4. Step 4: Simplify right side
    874,903.68x = 361,986,003,935.71
  5. Step 5: Solve for x
    x = 361,986,003,935.71/874,903.68
  6. Step 6: Final answer
    x = 413,743.84

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1.5x scale

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.