Home / 513,685.20-708,938.88-295,901.36

Finding the Fourth Proportional to 513,685.20, 708,938.88 and 295,901.36

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Solution

The fourth proportional to 513,685.20, 708,938.88 and 295,901.36 is: 408,374.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,685.20 : 708,938.88 = 295,901.36 : x
  2. Step 2: Convert to fraction form
    513,685.20/708,938.88 = 295,901.36/x
  3. Step 3: Cross multiply
    513,685.20x = 708,938.88 × 295,901.36
  4. Step 4: Simplify right side
    513,685.20x = 209,775,978,748.88
  5. Step 5: Solve for x
    x = 209,775,978,748.88/513,685.20
  6. Step 6: Final answer
    x = 408,374.58

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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.