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Finding the Fourth Proportional to 564,497.52, 778,999.97 and 306,374.93

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Solution

The fourth proportional to 564,497.52, 778,999.97 and 306,374.93 is: 422,793.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,497.52 : 778,999.97 = 306,374.93 : x
  2. Step 2: Convert to fraction form
    564,497.52/778,999.97 = 306,374.93/x
  3. Step 3: Cross multiply
    564,497.52x = 778,999.97 × 306,374.93
  4. Step 4: Simplify right side
    564,497.52x = 238,666,055,851.88
  5. Step 5: Solve for x
    x = 238,666,055,851.88/564,497.52
  6. Step 6: Final answer
    x = 422,793.81

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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.