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Finding the Fourth Proportional to 561,377.36, 775,218.12 and 360,523.28

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Solution

The fourth proportional to 561,377.36, 775,218.12 and 360,523.28 is: 497,854.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,377.36 : 775,218.12 = 360,523.28 : x
  2. Step 2: Convert to fraction form
    561,377.36/775,218.12 = 360,523.28/x
  3. Step 3: Cross multiply
    561,377.36x = 775,218.12 × 360,523.28
  4. Step 4: Simplify right side
    561,377.36x = 279,484,179,337.83
  5. Step 5: Solve for x
    x = 279,484,179,337.83/561,377.36
  6. Step 6: Final answer
    x = 497,854.38

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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.