Home / 1,008,045.35-1,512,068.03-905,402.15

Finding the Fourth Proportional to 1,008,045.35, 1,512,068.03 and 905,402.15

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Solution

The fourth proportional to 1,008,045.35, 1,512,068.03 and 905,402.15 is: 1,358,103.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,045.35 : 1,512,068.03 = 905,402.15 : x
  2. Step 2: Convert to fraction form
    1,008,045.35/1,512,068.03 = 905,402.15/x
  3. Step 3: Cross multiply
    1,008,045.35x = 1,512,068.03 × 905,402.15
  4. Step 4: Simplify right side
    1,008,045.35x = 1,369,029,640,781.25
  5. Step 5: Solve for x
    x = 1,369,029,640,781.25/1,008,045.35
  6. Step 6: Final answer
    x = 1,358,103.23

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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.