Home / 688,322.80-949,896.66-382,418.92

Finding the Fourth Proportional to 688,322.80, 949,896.66 and 382,418.92

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Solution

The fourth proportional to 688,322.80, 949,896.66 and 382,418.92 is: 527,744.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,322.80 : 949,896.66 = 382,418.92 : x
  2. Step 2: Convert to fraction form
    688,322.80/949,896.66 = 382,418.92/x
  3. Step 3: Cross multiply
    688,322.80x = 949,896.66 × 382,418.92
  4. Step 4: Simplify right side
    688,322.80x = 363,258,454,828.81
  5. Step 5: Solve for x
    x = 363,258,454,828.81/688,322.80
  6. Step 6: Final answer
    x = 527,744.33

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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.