Home / 1,127,643.14-1,691,436.12-328,931.60

Finding the Fourth Proportional to 1,127,643.14, 1,691,436.12 and 328,931.60

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Solution

The fourth proportional to 1,127,643.14, 1,691,436.12 and 328,931.60 is: 493,389.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,643.14 : 1,691,436.12 = 328,931.60 : x
  2. Step 2: Convert to fraction form
    1,127,643.14/1,691,436.12 = 328,931.60/x
  3. Step 3: Cross multiply
    1,127,643.14x = 1,691,436.12 × 328,931.60
  4. Step 4: Simplify right side
    1,127,643.14x = 556,366,789,249.39
  5. Step 5: Solve for x
    x = 556,366,789,249.39/1,127,643.14
  6. Step 6: Final answer
    x = 493,389.06

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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.