Home / 1,152,788.85-1,590,782.63-643,523.49

Finding the Fourth Proportional to 1,152,788.85, 1,590,782.63 and 643,523.49

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Solution

The fourth proportional to 1,152,788.85, 1,590,782.63 and 643,523.49 is: 888,025.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,788.85 : 1,590,782.63 = 643,523.49 : x
  2. Step 2: Convert to fraction form
    1,152,788.85/1,590,782.63 = 643,523.49/x
  3. Step 3: Cross multiply
    1,152,788.85x = 1,590,782.63 × 643,523.49
  4. Step 4: Simplify right side
    1,152,788.85x = 1,023,705,986,671.36
  5. Step 5: Solve for x
    x = 1,023,705,986,671.36/1,152,788.85
  6. Step 6: Final answer
    x = 888,025.58

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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.