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Finding the Fourth Proportional to 564,934.75, 779,420.26 and 319,886.02

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Solution

The fourth proportional to 564,934.75, 779,420.26 and 319,886.02 is: 441,335.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,934.75 : 779,420.26 = 319,886.02 : x
  2. Step 2: Convert to fraction form
    564,934.75/779,420.26 = 319,886.02/x
  3. Step 3: Cross multiply
    564,934.75x = 779,420.26 × 319,886.02
  4. Step 4: Simplify right side
    564,934.75x = 249,325,644,878.77
  5. Step 5: Solve for x
    x = 249,325,644,878.77/564,934.75
  6. Step 6: Final answer
    x = 441,335.30

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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.