Home / 1,225,184.91-1,690,507.44-715,788.87

Finding the Fourth Proportional to 1,225,184.91, 1,690,507.44 and 715,788.87

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Solution

The fourth proportional to 1,225,184.91, 1,690,507.44 and 715,788.87 is: 987,643.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,184.91 : 1,690,507.44 = 715,788.87 : x
  2. Step 2: Convert to fraction form
    1,225,184.91/1,690,507.44 = 715,788.87/x
  3. Step 3: Cross multiply
    1,225,184.91x = 1,690,507.44 × 715,788.87
  4. Step 4: Simplify right side
    1,225,184.91x = 1,210,046,410,204.19
  5. Step 5: Solve for x
    x = 1,210,046,410,204.19/1,225,184.91
  6. Step 6: Final answer
    x = 987,643.91

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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.