Home / 823,616.68-1,235,675.90-402,831.40

Finding the Fourth Proportional to 823,616.68, 1,235,675.90 and 402,831.40

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Solution

The fourth proportional to 823,616.68, 1,235,675.90 and 402,831.40 is: 604,369.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,616.68 : 1,235,675.90 = 402,831.40 : x
  2. Step 2: Convert to fraction form
    823,616.68/1,235,675.90 = 402,831.40/x
  3. Step 3: Cross multiply
    823,616.68x = 1,235,675.90 × 402,831.40
  4. Step 4: Simplify right side
    823,616.68x = 497,769,052,743.26
  5. Step 5: Solve for x
    x = 497,769,052,743.26/823,616.68
  6. Step 6: Final answer
    x = 604,369.81

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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.