Home / 815,831.64-1,124,940.12-557,750.76

Finding the Fourth Proportional to 815,831.64, 1,124,940.12 and 557,750.76

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Solution

The fourth proportional to 815,831.64, 1,124,940.12 and 557,750.76 is: 769,075.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,831.64 : 1,124,940.12 = 557,750.76 : x
  2. Step 2: Convert to fraction form
    815,831.64/1,124,940.12 = 557,750.76/x
  3. Step 3: Cross multiply
    815,831.64x = 1,124,940.12 × 557,750.76
  4. Step 4: Simplify right side
    815,831.64x = 627,436,206,884.49
  5. Step 5: Solve for x
    x = 627,436,206,884.49/815,831.64
  6. Step 6: Final answer
    x = 769,075.60

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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.