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Finding the Fourth Proportional to 907,712.65, 1,361,568.98 and 866,378.35

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Solution

The fourth proportional to 907,712.65, 1,361,568.98 and 866,378.35 is: 1,299,567.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,712.65 : 1,361,568.98 = 866,378.35 : x
  2. Step 2: Convert to fraction form
    907,712.65/1,361,568.98 = 866,378.35/x
  3. Step 3: Cross multiply
    907,712.65x = 1,361,568.98 × 866,378.35
  4. Step 4: Simplify right side
    907,712.65x = 1,179,633,886,303.58
  5. Step 5: Solve for x
    x = 1,179,633,886,303.58/907,712.65
  6. Step 6: Final answer
    x = 1,299,567.53

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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.