Home / 867,428.96-1,300,819.84-298,649.40

Finding the Fourth Proportional to 867,428.96, 1,300,819.84 and 298,649.40

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Solution

The fourth proportional to 867,428.96, 1,300,819.84 and 298,649.40 is: 447,862.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,428.96 : 1,300,819.84 = 298,649.40 : x
  2. Step 2: Convert to fraction form
    867,428.96/1,300,819.84 = 298,649.40/x
  3. Step 3: Cross multiply
    867,428.96x = 1,300,819.84 × 298,649.40
  4. Step 4: Simplify right side
    867,428.96x = 388,489,064,724.10
  5. Step 5: Solve for x
    x = 388,489,064,724.10/867,428.96
  6. Step 6: Final answer
    x = 447,862.69

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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.