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Finding the Fourth Proportional to 564,863.18, 779,529.15 and 310,214.37

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Solution

The fourth proportional to 564,863.18, 779,529.15 and 310,214.37 is: 428,105.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,863.18 : 779,529.15 = 310,214.37 : x
  2. Step 2: Convert to fraction form
    564,863.18/779,529.15 = 310,214.37/x
  3. Step 3: Cross multiply
    564,863.18x = 779,529.15 × 310,214.37
  4. Step 4: Simplify right side
    564,863.18x = 241,821,140,077.35
  5. Step 5: Solve for x
    x = 241,821,140,077.35/564,863.18
  6. Step 6: Final answer
    x = 428,105.69

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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.