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Finding the Fourth Proportional to 564,490.18, 779,361.24 and 349,858

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Solution

The fourth proportional to 564,490.18, 779,361.24 and 349,858 is: 483,030.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,490.18 : 779,361.24 = 349,858 : x
  2. Step 2: Convert to fraction form
    564,490.18/779,361.24 = 349,858/x
  3. Step 3: Cross multiply
    564,490.18x = 779,361.24 × 349,858
  4. Step 4: Simplify right side
    564,490.18x = 272,665,764,703.92
  5. Step 5: Solve for x
    x = 272,665,764,703.92/564,490.18
  6. Step 6: Final answer
    x = 483,030.13

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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.