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Finding the Fourth Proportional to 564,892.11, 779,557.23 and 310,243.26

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Solution

The fourth proportional to 564,892.11, 779,557.23 and 310,243.26 is: 428,139.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,892.11 : 779,557.23 = 310,243.26 : x
  2. Step 2: Convert to fraction form
    564,892.11/779,557.23 = 310,243.26/x
  3. Step 3: Cross multiply
    564,892.11x = 779,557.23 × 310,243.26
  4. Step 4: Simplify right side
    564,892.11x = 241,852,376,391.77
  5. Step 5: Solve for x
    x = 241,852,376,391.77/564,892.11
  6. Step 6: Final answer
    x = 428,139.06

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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.