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Finding the Fourth Proportional to 564,682.40, 779,039.48 and 322,835.04

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Solution

The fourth proportional to 564,682.40, 779,039.48 and 322,835.04 is: 445,385.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,682.40 : 779,039.48 = 322,835.04 : x
  2. Step 2: Convert to fraction form
    564,682.40/779,039.48 = 322,835.04/x
  3. Step 3: Cross multiply
    564,682.40x = 779,039.48 × 322,835.04
  4. Step 4: Simplify right side
    564,682.40x = 251,501,241,687.38
  5. Step 5: Solve for x
    x = 251,501,241,687.38/564,682.40
  6. Step 6: Final answer
    x = 445,385.30

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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.