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Finding the Fourth Proportional to 564,039.77, 845,638.86 and 339,347.55

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Solution

The fourth proportional to 564,039.77, 845,638.86 and 339,347.55 is: 508,768.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,039.77 : 845,638.86 = 339,347.55 : x
  2. Step 2: Convert to fraction form
    564,039.77/845,638.86 = 339,347.55/x
  3. Step 3: Cross multiply
    564,039.77x = 845,638.86 × 339,347.55
  4. Step 4: Simplify right side
    564,039.77x = 286,965,475,325.79
  5. Step 5: Solve for x
    x = 286,965,475,325.79/564,039.77
  6. Step 6: Final answer
    x = 508,768.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.