Home / 1,152,342.28-1,590,231.30-643,047.40

Finding the Fourth Proportional to 1,152,342.28, 1,590,231.30 and 643,047.40

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Solution

The fourth proportional to 1,152,342.28, 1,590,231.30 and 643,047.40 is: 887,404.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,342.28 : 1,590,231.30 = 643,047.40 : x
  2. Step 2: Convert to fraction form
    1,152,342.28/1,590,231.30 = 643,047.40/x
  3. Step 3: Cross multiply
    1,152,342.28x = 1,590,231.30 × 643,047.40
  4. Step 4: Simplify right side
    1,152,342.28x = 1,022,594,102,863.62
  5. Step 5: Solve for x
    x = 1,022,594,102,863.62/1,152,342.28
  6. Step 6: Final answer
    x = 887,404.83

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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.