Home / 781,748.12-1,172,687.94-249,344.84

Finding the Fourth Proportional to 781,748.12, 1,172,687.94 and 249,344.84

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Solution

The fourth proportional to 781,748.12, 1,172,687.94 and 249,344.84 is: 374,038.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,748.12 : 1,172,687.94 = 249,344.84 : x
  2. Step 2: Convert to fraction form
    781,748.12/1,172,687.94 = 249,344.84/x
  3. Step 3: Cross multiply
    781,748.12x = 1,172,687.94 × 249,344.84
  4. Step 4: Simplify right side
    781,748.12x = 292,403,686,769.23
  5. Step 5: Solve for x
    x = 292,403,686,769.23/781,748.12
  6. Step 6: Final answer
    x = 374,038.23

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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.