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Finding the Fourth Proportional to 575,205.20, 862,799.70 and 259,661.60

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Solution

The fourth proportional to 575,205.20, 862,799.70 and 259,661.60 is: 389,488.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,205.20 : 862,799.70 = 259,661.60 : x
  2. Step 2: Convert to fraction form
    575,205.20/862,799.70 = 259,661.60/x
  3. Step 3: Cross multiply
    575,205.20x = 862,799.70 × 259,661.60
  4. Step 4: Simplify right side
    575,205.20x = 224,035,950,581.52
  5. Step 5: Solve for x
    x = 224,035,950,581.52/575,205.20
  6. Step 6: Final answer
    x = 389,488.74

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1.5x scale

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.