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Finding the Fourth Proportional to 656,842.65, 985,263.98 and 550,554.45

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Solution

The fourth proportional to 656,842.65, 985,263.98 and 550,554.45 is: 825,831.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,842.65 : 985,263.98 = 550,554.45 : x
  2. Step 2: Convert to fraction form
    656,842.65/985,263.98 = 550,554.45/x
  3. Step 3: Cross multiply
    656,842.65x = 985,263.98 × 550,554.45
  4. Step 4: Simplify right side
    656,842.65x = 542,441,465,860.94
  5. Step 5: Solve for x
    x = 542,441,465,860.94/656,842.65
  6. Step 6: Final answer
    x = 825,831.68

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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.