Home / 1,776,492.12-2,664,713.42-428,643.41

Finding the Fourth Proportional to 1,776,492.12, 2,664,713.42 and 428,643.41

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Solution

The fourth proportional to 1,776,492.12, 2,664,713.42 and 428,643.41 is: 642,959.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,776,492.12 : 2,664,713.42 = 428,643.41 : x
  2. Step 2: Convert to fraction form
    1,776,492.12/2,664,713.42 = 428,643.41/x
  3. Step 3: Cross multiply
    1,776,492.12x = 2,664,713.42 × 428,643.41
  4. Step 4: Simplify right side
    1,776,492.12x = 1,142,211,831,554.78
  5. Step 5: Solve for x
    x = 1,142,211,831,554.78/1,776,492.12
  6. Step 6: Final answer
    x = 642,959.13

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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.