Home / 557,626.77-769,499.82-315,904.41

Finding the Fourth Proportional to 557,626.77, 769,499.82 and 315,904.41

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Solution

The fourth proportional to 557,626.77, 769,499.82 and 315,904.41 is: 435,933.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,626.77 : 769,499.82 = 315,904.41 : x
  2. Step 2: Convert to fraction form
    557,626.77/769,499.82 = 315,904.41/x
  3. Step 3: Cross multiply
    557,626.77x = 769,499.82 × 315,904.41
  4. Step 4: Simplify right side
    557,626.77x = 243,088,386,632.21
  5. Step 5: Solve for x
    x = 243,088,386,632.21/557,626.77
  6. Step 6: Final answer
    x = 435,933.85

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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.