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Finding the Fourth Proportional to 564,787.44, 779,420.28 and 306,675.36

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Solution

The fourth proportional to 564,787.44, 779,420.28 and 306,675.36 is: 423,219.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,787.44 : 779,420.28 = 306,675.36 : x
  2. Step 2: Convert to fraction form
    564,787.44/779,420.28 = 306,675.36/x
  3. Step 3: Cross multiply
    564,787.44x = 779,420.28 × 306,675.36
  4. Step 4: Simplify right side
    564,787.44x = 239,028,994,960.30
  5. Step 5: Solve for x
    x = 239,028,994,960.30/564,787.44
  6. Step 6: Final answer
    x = 423,219.39

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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.