Home / 826,489.80-1,140,572.85-463,939.89

Finding the Fourth Proportional to 826,489.80, 1,140,572.85 and 463,939.89

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Solution

The fourth proportional to 826,489.80, 1,140,572.85 and 463,939.89 is: 640,246.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,489.80 : 1,140,572.85 = 463,939.89 : x
  2. Step 2: Convert to fraction form
    826,489.80/1,140,572.85 = 463,939.89/x
  3. Step 3: Cross multiply
    826,489.80x = 1,140,572.85 × 463,939.89
  4. Step 4: Simplify right side
    826,489.80x = 529,157,242,565.99
  5. Step 5: Solve for x
    x = 529,157,242,565.99/826,489.80
  6. Step 6: Final answer
    x = 640,246.55

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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.