Home / 1,412,354.40-2,115,032.40-906,136.80

Finding the Fourth Proportional to 1,412,354.40, 2,115,032.40 and 906,136.80

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Solution

The fourth proportional to 1,412,354.40, 2,115,032.40 and 906,136.80 is: 1,356,960.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,412,354.40 : 2,115,032.40 = 906,136.80 : x
  2. Step 2: Convert to fraction form
    1,412,354.40/2,115,032.40 = 906,136.80/x
  3. Step 3: Cross multiply
    1,412,354.40x = 2,115,032.40 × 906,136.80
  4. Step 4: Simplify right side
    1,412,354.40x = 1,916,508,690,832.32
  5. Step 5: Solve for x
    x = 1,916,508,690,832.32/1,412,354.40
  6. Step 6: Final answer
    x = 1,356,960.19

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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.