Home / 1,908,381.12-2,862,703.08-488,449.68

Finding the Fourth Proportional to 1,908,381.12, 2,862,703.08 and 488,449.68

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Solution

The fourth proportional to 1,908,381.12, 2,862,703.08 and 488,449.68 is: 732,708.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,908,381.12 : 2,862,703.08 = 488,449.68 : x
  2. Step 2: Convert to fraction form
    1,908,381.12/2,862,703.08 = 488,449.68/x
  3. Step 3: Cross multiply
    1,908,381.12x = 2,862,703.08 × 488,449.68
  4. Step 4: Simplify right side
    1,908,381.12x = 1,398,286,403,361.01
  5. Step 5: Solve for x
    x = 1,398,286,403,361.01/1,908,381.12
  6. Step 6: Final answer
    x = 732,708.15

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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.