Home / 1,421,966.71-1,962,234.61-777,258.55

Finding the Fourth Proportional to 1,421,966.71, 1,962,234.61 and 777,258.55

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Solution

The fourth proportional to 1,421,966.71, 1,962,234.61 and 777,258.55 is: 1,072,573.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,966.71 : 1,962,234.61 = 777,258.55 : x
  2. Step 2: Convert to fraction form
    1,421,966.71/1,962,234.61 = 777,258.55/x
  3. Step 3: Cross multiply
    1,421,966.71x = 1,962,234.61 × 777,258.55
  4. Step 4: Simplify right side
    1,421,966.71x = 1,525,163,627,728.42
  5. Step 5: Solve for x
    x = 1,525,163,627,728.42/1,421,966.71
  6. Step 6: Final answer
    x = 1,072,573.37

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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.