Home / 680,037.12-1,019,676.96-280,948.32

Finding the Fourth Proportional to 680,037.12, 1,019,676.96 and 280,948.32

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Solution

The fourth proportional to 680,037.12, 1,019,676.96 and 280,948.32 is: 421,266.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,037.12 : 1,019,676.96 = 280,948.32 : x
  2. Step 2: Convert to fraction form
    680,037.12/1,019,676.96 = 280,948.32/x
  3. Step 3: Cross multiply
    680,037.12x = 1,019,676.96 × 280,948.32
  4. Step 4: Simplify right side
    680,037.12x = 286,476,528,854.71
  5. Step 5: Solve for x
    x = 286,476,528,854.71/680,037.12
  6. Step 6: Final answer
    x = 421,266.02

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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.