Home / 1,313,521.28-1,812,618.24-770,019.05

Finding the Fourth Proportional to 1,313,521.28, 1,812,618.24 and 770,019.05

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Solution

The fourth proportional to 1,313,521.28, 1,812,618.24 and 770,019.05 is: 1,062,602.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,521.28 : 1,812,618.24 = 770,019.05 : x
  2. Step 2: Convert to fraction form
    1,313,521.28/1,812,618.24 = 770,019.05/x
  3. Step 3: Cross multiply
    1,313,521.28x = 1,812,618.24 × 770,019.05
  4. Step 4: Simplify right side
    1,313,521.28x = 1,395,750,575,177.47
  5. Step 5: Solve for x
    x = 1,395,750,575,177.47/1,313,521.28
  6. Step 6: Final answer
    x = 1,062,602.18

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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.