Home / 1,312,894.62-1,812,399.89-768,955.32

Finding the Fourth Proportional to 1,312,894.62, 1,812,399.89 and 768,955.32

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Solution

The fourth proportional to 1,312,894.62, 1,812,399.89 and 768,955.32 is: 1,061,512.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,894.62 : 1,812,399.89 = 768,955.32 : x
  2. Step 2: Convert to fraction form
    1,312,894.62/1,812,399.89 = 768,955.32/x
  3. Step 3: Cross multiply
    1,312,894.62x = 1,812,399.89 × 768,955.32
  4. Step 4: Simplify right side
    1,312,894.62x = 1,393,654,533,538.14
  5. Step 5: Solve for x
    x = 1,393,654,533,538.14/1,312,894.62
  6. Step 6: Final answer
    x = 1,061,512.87

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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.