Home / 1,428,282.84-2,142,586.77-517,894.11

Finding the Fourth Proportional to 1,428,282.84, 2,142,586.77 and 517,894.11

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Solution

The fourth proportional to 1,428,282.84, 2,142,586.77 and 517,894.11 is: 776,900.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,282.84 : 2,142,586.77 = 517,894.11 : x
  2. Step 2: Convert to fraction form
    1,428,282.84/2,142,586.77 = 517,894.11/x
  3. Step 3: Cross multiply
    1,428,282.84x = 2,142,586.77 × 517,894.11
  4. Step 4: Simplify right side
    1,428,282.84x = 1,109,633,073,703.39
  5. Step 5: Solve for x
    x = 1,109,633,073,703.39/1,428,282.84
  6. Step 6: Final answer
    x = 776,900.10

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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.