Home / 819,545.74-1,228,892.10-313,955.08

Finding the Fourth Proportional to 819,545.74, 1,228,892.10 and 313,955.08

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Solution

The fourth proportional to 819,545.74, 1,228,892.10 and 313,955.08 is: 470,769.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,545.74 : 1,228,892.10 = 313,955.08 : x
  2. Step 2: Convert to fraction form
    819,545.74/1,228,892.10 = 313,955.08/x
  3. Step 3: Cross multiply
    819,545.74x = 1,228,892.10 × 313,955.08
  4. Step 4: Simplify right side
    819,545.74x = 385,816,917,566.87
  5. Step 5: Solve for x
    x = 385,816,917,566.87/819,545.74
  6. Step 6: Final answer
    x = 470,769.23

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1.5x scale

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.