Home / 774,728.88-1,069,121.81-425,877.41

Finding the Fourth Proportional to 774,728.88, 1,069,121.81 and 425,877.41

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Solution

The fourth proportional to 774,728.88, 1,069,121.81 and 425,877.41 is: 587,708.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,728.88 : 1,069,121.81 = 425,877.41 : x
  2. Step 2: Convert to fraction form
    774,728.88/1,069,121.81 = 425,877.41/x
  3. Step 3: Cross multiply
    774,728.88x = 1,069,121.81 × 425,877.41
  4. Step 4: Simplify right side
    774,728.88x = 455,314,827,417.31
  5. Step 5: Solve for x
    x = 455,314,827,417.31/774,728.88
  6. Step 6: Final answer
    x = 587,708.60

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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.