Home / 1,565,976.95-2,161,199.86-877,765.71

Finding the Fourth Proportional to 1,565,976.95, 2,161,199.86 and 877,765.71

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Solution

The fourth proportional to 1,565,976.95, 2,161,199.86 and 877,765.71 is: 1,211,401.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,565,976.95 : 2,161,199.86 = 877,765.71 : x
  2. Step 2: Convert to fraction form
    1,565,976.95/2,161,199.86 = 877,765.71/x
  3. Step 3: Cross multiply
    1,565,976.95x = 2,161,199.86 × 877,765.71
  4. Step 4: Simplify right side
    1,565,976.95x = 1,897,027,129,564.80
  5. Step 5: Solve for x
    x = 1,897,027,129,564.80/1,565,976.95
  6. Step 6: Final answer
    x = 1,211,401.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.