Home / 1,152,370.94-1,590,125.18-643,094.78

Finding the Fourth Proportional to 1,152,370.94, 1,590,125.18 and 643,094.78

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Solution

The fourth proportional to 1,152,370.94, 1,590,125.18 and 643,094.78 is: 887,388.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,370.94 : 1,590,125.18 = 643,094.78 : x
  2. Step 2: Convert to fraction form
    1,152,370.94/1,590,125.18 = 643,094.78/x
  3. Step 3: Cross multiply
    1,152,370.94x = 1,590,125.18 × 643,094.78
  4. Step 4: Simplify right side
    1,152,370.94x = 1,022,601,202,804.56
  5. Step 5: Solve for x
    x = 1,022,601,202,804.56/1,152,370.94
  6. Step 6: Final answer
    x = 887,388.92

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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.