Home / 1,578,085.20-2,365,378.20-868,622.40

Finding the Fourth Proportional to 1,578,085.20, 2,365,378.20 and 868,622.40

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Solution

The fourth proportional to 1,578,085.20, 2,365,378.20 and 868,622.40 is: 1,301,970.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,578,085.20 : 2,365,378.20 = 868,622.40 : x
  2. Step 2: Convert to fraction form
    1,578,085.20/2,365,378.20 = 868,622.40/x
  3. Step 3: Cross multiply
    1,578,085.20x = 2,365,378.20 × 868,622.40
  4. Step 4: Simplify right side
    1,578,085.20x = 2,054,620,488,991.68
  5. Step 5: Solve for x
    x = 2,054,620,488,991.68/1,578,085.20
  6. Step 6: Final answer
    x = 1,301,970.57

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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.