Home / 557,544.10-769,426.64-315,826.61

Finding the Fourth Proportional to 557,544.10, 769,426.64 and 315,826.61

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Solution

The fourth proportional to 557,544.10, 769,426.64 and 315,826.61 is: 435,849.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,544.10 : 769,426.64 = 315,826.61 : x
  2. Step 2: Convert to fraction form
    557,544.10/769,426.64 = 315,826.61/x
  3. Step 3: Cross multiply
    557,544.10x = 769,426.64 × 315,826.61
  4. Step 4: Simplify right side
    557,544.10x = 243,005,405,775.76
  5. Step 5: Solve for x
    x = 243,005,405,775.76/557,544.10
  6. Step 6: Final answer
    x = 435,849.66

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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.