Home / 1,206,343.68-1,663,831.78-819,457.40

Finding the Fourth Proportional to 1,206,343.68, 1,663,831.78 and 819,457.40

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Solution

The fourth proportional to 1,206,343.68, 1,663,831.78 and 819,457.40 is: 1,130,224.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206,343.68 : 1,663,831.78 = 819,457.40 : x
  2. Step 2: Convert to fraction form
    1,206,343.68/1,663,831.78 = 819,457.40/x
  3. Step 3: Cross multiply
    1,206,343.68x = 1,663,831.78 × 819,457.40
  4. Step 4: Simplify right side
    1,206,343.68x = 1,363,439,264,476.17
  5. Step 5: Solve for x
    x = 1,363,439,264,476.17/1,206,343.68
  6. Step 6: Final answer
    x = 1,130,224.57

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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.