Home / 789,955.11-1,090,111.10-450,532.71

Finding the Fourth Proportional to 789,955.11, 1,090,111.10 and 450,532.71

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Solution

The fourth proportional to 789,955.11, 1,090,111.10 and 450,532.71 is: 621,719.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,955.11 : 1,090,111.10 = 450,532.71 : x
  2. Step 2: Convert to fraction form
    789,955.11/1,090,111.10 = 450,532.71/x
  3. Step 3: Cross multiply
    789,955.11x = 1,090,111.10 × 450,532.71
  4. Step 4: Simplify right side
    789,955.11x = 491,130,705,831.42
  5. Step 5: Solve for x
    x = 491,130,705,831.42/789,955.11
  6. Step 6: Final answer
    x = 621,719.77

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1.5x scale

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.