Home / 1,279,124.12-1,918,044.32-425,895.23

Finding the Fourth Proportional to 1,279,124.12, 1,918,044.32 and 425,895.23

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Solution

The fourth proportional to 1,279,124.12, 1,918,044.32 and 425,895.23 is: 638,629.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,124.12 : 1,918,044.32 = 425,895.23 : x
  2. Step 2: Convert to fraction form
    1,279,124.12/1,918,044.32 = 425,895.23/x
  3. Step 3: Cross multiply
    1,279,124.12x = 1,918,044.32 × 425,895.23
  4. Step 4: Simplify right side
    1,279,124.12x = 816,885,929,482.23
  5. Step 5: Solve for x
    x = 816,885,929,482.23/1,279,124.12
  6. Step 6: Final answer
    x = 638,629.13

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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.