Home / 875,221.92-1,207,777.68-553,104.80

Finding the Fourth Proportional to 875,221.92, 1,207,777.68 and 553,104.80

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Solution

The fourth proportional to 875,221.92, 1,207,777.68 and 553,104.80 is: 763,266.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,221.92 : 1,207,777.68 = 553,104.80 : x
  2. Step 2: Convert to fraction form
    875,221.92/1,207,777.68 = 553,104.80/x
  3. Step 3: Cross multiply
    875,221.92x = 1,207,777.68 × 553,104.80
  4. Step 4: Simplify right side
    875,221.92x = 668,027,632,140.86
  5. Step 5: Solve for x
    x = 668,027,632,140.86/875,221.92
  6. Step 6: Final answer
    x = 763,266.57

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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.