Home / 1,389,503.04-1,917,598.68-777,643.32

Finding the Fourth Proportional to 1,389,503.04, 1,917,598.68 and 777,643.32

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Solution

The fourth proportional to 1,389,503.04, 1,917,598.68 and 777,643.32 is: 1,073,195.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,503.04 : 1,917,598.68 = 777,643.32 : x
  2. Step 2: Convert to fraction form
    1,389,503.04/1,917,598.68 = 777,643.32/x
  3. Step 3: Cross multiply
    1,389,503.04x = 1,917,598.68 × 777,643.32
  4. Step 4: Simplify right side
    1,389,503.04x = 1,491,207,803,942.82
  5. Step 5: Solve for x
    x = 1,491,207,803,942.82/1,389,503.04
  6. Step 6: Final answer
    x = 1,073,195.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.