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Finding the Fourth Proportional to 564,798.56, 779,430.95 and 306,675.36

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Solution

The fourth proportional to 564,798.56, 779,430.95 and 306,675.36 is: 423,216.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,798.56 : 779,430.95 = 306,675.36 : x
  2. Step 2: Convert to fraction form
    564,798.56/779,430.95 = 306,675.36/x
  3. Step 3: Cross multiply
    564,798.56x = 779,430.95 × 306,675.36
  4. Step 4: Simplify right side
    564,798.56x = 239,032,267,186.39
  5. Step 5: Solve for x
    x = 239,032,267,186.39/564,798.56
  6. Step 6: Final answer
    x = 423,216.85

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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.