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Finding the Fourth Proportional to 564,886.10, 779,548.95 and 310,237.29

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Solution

The fourth proportional to 564,886.10, 779,548.95 and 310,237.29 is: 428,130.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,886.10 : 779,548.95 = 310,237.29 : x
  2. Step 2: Convert to fraction form
    564,886.10/779,548.95 = 310,237.29/x
  3. Step 3: Cross multiply
    564,886.10x = 779,548.95 × 310,237.29
  4. Step 4: Simplify right side
    564,886.10x = 241,845,153,670.35
  5. Step 5: Solve for x
    x = 241,845,153,670.35/564,886.10
  6. Step 6: Final answer
    x = 428,130.83

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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.