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Finding the Fourth Proportional to 564,840.86, 779,452.08 and 319,787.48

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Solution

The fourth proportional to 564,840.86, 779,452.08 and 319,787.48 is: 441,290.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,840.86 : 779,452.08 = 319,787.48 : x
  2. Step 2: Convert to fraction form
    564,840.86/779,452.08 = 319,787.48/x
  3. Step 3: Cross multiply
    564,840.86x = 779,452.08 × 319,787.48
  4. Step 4: Simplify right side
    564,840.86x = 249,259,016,443.96
  5. Step 5: Solve for x
    x = 249,259,016,443.96/564,840.86
  6. Step 6: Final answer
    x = 441,290.70

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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.