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Finding the Fourth Proportional to 564,738.32, 779,340.22 and 310,105.92

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Solution

The fourth proportional to 564,738.32, 779,340.22 and 310,105.92 is: 427,946.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,738.32 : 779,340.22 = 310,105.92 : x
  2. Step 2: Convert to fraction form
    564,738.32/779,340.22 = 310,105.92/x
  3. Step 3: Cross multiply
    564,738.32x = 779,340.22 × 310,105.92
  4. Step 4: Simplify right side
    564,738.32x = 241,678,015,916.10
  5. Step 5: Solve for x
    x = 241,678,015,916.10/564,738.32
  6. Step 6: Final answer
    x = 427,946.90

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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.