Home / 557,665.58-769,581.05-315,995.24

Finding the Fourth Proportional to 557,665.58, 769,581.05 and 315,995.24

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Solution

The fourth proportional to 557,665.58, 769,581.05 and 315,995.24 is: 436,074.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,665.58 : 769,581.05 = 315,995.24 : x
  2. Step 2: Convert to fraction form
    557,665.58/769,581.05 = 315,995.24/x
  3. Step 3: Cross multiply
    557,665.58x = 769,581.05 × 315,995.24
  4. Step 4: Simplify right side
    557,665.58x = 243,183,948,938.18
  5. Step 5: Solve for x
    x = 243,183,948,938.18/557,665.58
  6. Step 6: Final answer
    x = 436,074.87

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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.