Home / 791,815.80-1,186,477.65-612,340.86

Finding the Fourth Proportional to 791,815.80, 1,186,477.65 and 612,340.86

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Solution

The fourth proportional to 791,815.80, 1,186,477.65 and 612,340.86 is: 917,547.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,815.80 : 1,186,477.65 = 612,340.86 : x
  2. Step 2: Convert to fraction form
    791,815.80/1,186,477.65 = 612,340.86/x
  3. Step 3: Cross multiply
    791,815.80x = 1,186,477.65 × 612,340.86
  4. Step 4: Simplify right side
    791,815.80x = 726,528,744,571.78
  5. Step 5: Solve for x
    x = 726,528,744,571.78/791,815.80
  6. Step 6: Final answer
    x = 917,547.67

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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.