Home / 1,273,911.08-1,911,117.18-420,948.32

Finding the Fourth Proportional to 1,273,911.08, 1,911,117.18 and 420,948.32

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Solution

The fourth proportional to 1,273,911.08, 1,911,117.18 and 420,948.32 is: 631,505.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,273,911.08 : 1,911,117.18 = 420,948.32 : x
  2. Step 2: Convert to fraction form
    1,273,911.08/1,911,117.18 = 420,948.32/x
  3. Step 3: Cross multiply
    1,273,911.08x = 1,911,117.18 × 420,948.32
  4. Step 4: Simplify right side
    1,273,911.08x = 804,481,566,244.14
  5. Step 5: Solve for x
    x = 804,481,566,244.14/1,273,911.08
  6. Step 6: Final answer
    x = 631,505.27

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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.