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Finding the Fourth Proportional to 564,772.01, 779,394.89 and 310,146.89

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Solution

The fourth proportional to 564,772.01, 779,394.89 and 310,146.89 is: 428,007.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,772.01 : 779,394.89 = 310,146.89 : x
  2. Step 2: Convert to fraction form
    564,772.01/779,394.89 = 310,146.89/x
  3. Step 3: Cross multiply
    564,772.01x = 779,394.89 × 310,146.89
  4. Step 4: Simplify right side
    564,772.01x = 241,726,898,093.79
  5. Step 5: Solve for x
    x = 241,726,898,093.79/564,772.01
  6. Step 6: Final answer
    x = 428,007.93

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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.