Home / 642,893.76-964,347.93-243,426.06

Finding the Fourth Proportional to 642,893.76, 964,347.93 and 243,426.06

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Solution

The fourth proportional to 642,893.76, 964,347.93 and 243,426.06 is: 365,141.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,893.76 : 964,347.93 = 243,426.06 : x
  2. Step 2: Convert to fraction form
    642,893.76/964,347.93 = 243,426.06/x
  3. Step 3: Cross multiply
    642,893.76x = 964,347.93 × 243,426.06
  4. Step 4: Simplify right side
    642,893.76x = 234,747,417,069.06
  5. Step 5: Solve for x
    x = 234,747,417,069.06/642,893.76
  6. Step 6: Final answer
    x = 365,141.85

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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.