Home / 1,273,630.78-1,908,871.53-642,725.02

Finding the Fourth Proportional to 1,273,630.78, 1,908,871.53 and 642,725.02

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Solution

The fourth proportional to 1,273,630.78, 1,908,871.53 and 642,725.02 is: 963,292.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,273,630.78 : 1,908,871.53 = 642,725.02 : x
  2. Step 2: Convert to fraction form
    1,273,630.78/1,908,871.53 = 642,725.02/x
  3. Step 3: Cross multiply
    1,273,630.78x = 1,908,871.53 × 642,725.02
  4. Step 4: Simplify right side
    1,273,630.78x = 1,226,879,492,296.68
  5. Step 5: Solve for x
    x = 1,226,879,492,296.68/1,273,630.78
  6. Step 6: Final answer
    x = 963,292.90

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.