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Finding the Fourth Proportional to 564,069.21, 778,471.42 and 322,386.47

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Solution

The fourth proportional to 564,069.21, 778,471.42 and 322,386.47 is: 444,925.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,069.21 : 778,471.42 = 322,386.47 : x
  2. Step 2: Convert to fraction form
    564,069.21/778,471.42 = 322,386.47/x
  3. Step 3: Cross multiply
    564,069.21x = 778,471.42 × 322,386.47
  4. Step 4: Simplify right side
    564,069.21x = 250,968,653,089.69
  5. Step 5: Solve for x
    x = 250,968,653,089.69/564,069.21
  6. Step 6: Final answer
    x = 444,925.28

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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.