Home / 1,186,222.86-1,778,966.28-427,965.76

Finding the Fourth Proportional to 1,186,222.86, 1,778,966.28 and 427,965.76

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Solution

The fourth proportional to 1,186,222.86, 1,778,966.28 and 427,965.76 is: 641,815.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,222.86 : 1,778,966.28 = 427,965.76 : x
  2. Step 2: Convert to fraction form
    1,186,222.86/1,778,966.28 = 427,965.76/x
  3. Step 3: Cross multiply
    1,186,222.86x = 1,778,966.28 × 427,965.76
  4. Step 4: Simplify right side
    1,186,222.86x = 761,336,647,139.74
  5. Step 5: Solve for x
    x = 761,336,647,139.74/1,186,222.86
  6. Step 6: Final answer
    x = 641,815.86

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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.