Home / 875,100.30-1,207,631.26-487,911.12

Finding the Fourth Proportional to 875,100.30, 1,207,631.26 and 487,911.12

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Solution

The fourth proportional to 875,100.30, 1,207,631.26 and 487,911.12 is: 673,313.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,100.30 : 1,207,631.26 = 487,911.12 : x
  2. Step 2: Convert to fraction form
    875,100.30/1,207,631.26 = 487,911.12/x
  3. Step 3: Cross multiply
    875,100.30x = 1,207,631.26 × 487,911.12
  4. Step 4: Simplify right side
    875,100.30x = 589,216,720,613.61
  5. Step 5: Solve for x
    x = 589,216,720,613.61/875,100.30
  6. Step 6: Final answer
    x = 673,313.36

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1.5x scale

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.