Home / 1,085,983.56-1,626,316.83-765,347.40

Finding the Fourth Proportional to 1,085,983.56, 1,626,316.83 and 765,347.40

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Solution

The fourth proportional to 1,085,983.56, 1,626,316.83 and 765,347.40 is: 1,146,147.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,085,983.56 : 1,626,316.83 = 765,347.40 : x
  2. Step 2: Convert to fraction form
    1,085,983.56/1,626,316.83 = 765,347.40/x
  3. Step 3: Cross multiply
    1,085,983.56x = 1,626,316.83 × 765,347.40
  4. Step 4: Simplify right side
    1,085,983.56x = 1,244,697,357,416.74
  5. Step 5: Solve for x
    x = 1,244,697,357,416.74/1,085,983.56
  6. Step 6: Final answer
    x = 1,146,147.51

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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.