Home / 1,280,498.40-1,916,600.40-907,250.40

Finding the Fourth Proportional to 1,280,498.40, 1,916,600.40 and 907,250.40

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Solution

The fourth proportional to 1,280,498.40, 1,916,600.40 and 907,250.40 is: 1,357,937.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,498.40 : 1,916,600.40 = 907,250.40 : x
  2. Step 2: Convert to fraction form
    1,280,498.40/1,916,600.40 = 907,250.40/x
  3. Step 3: Cross multiply
    1,280,498.40x = 1,916,600.40 × 907,250.40
  4. Step 4: Simplify right side
    1,280,498.40x = 1,738,836,479,540.16
  5. Step 5: Solve for x
    x = 1,738,836,479,540.16/1,280,498.40
  6. Step 6: Final answer
    x = 1,357,937.25

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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.