Home / 875,102.30-1,207,634.01-487,913.12

Finding the Fourth Proportional to 875,102.30, 1,207,634.01 and 487,913.12

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Solution

The fourth proportional to 875,102.30, 1,207,634.01 and 487,913.12 is: 673,316.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,102.30 : 1,207,634.01 = 487,913.12 : x
  2. Step 2: Convert to fraction form
    875,102.30/1,207,634.01 = 487,913.12/x
  3. Step 3: Cross multiply
    875,102.30x = 1,207,634.01 × 487,913.12
  4. Step 4: Simplify right side
    875,102.30x = 589,220,471,599.04
  5. Step 5: Solve for x
    x = 589,220,471,599.04/875,102.30
  6. Step 6: Final answer
    x = 673,316.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.