Home / 989,435.94-1,365,422.04-559,706.91

Finding the Fourth Proportional to 989,435.94, 1,365,422.04 and 559,706.91

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Solution

The fourth proportional to 989,435.94, 1,365,422.04 and 559,706.91 is: 772,395.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,435.94 : 1,365,422.04 = 559,706.91 : x
  2. Step 2: Convert to fraction form
    989,435.94/1,365,422.04 = 559,706.91/x
  3. Step 3: Cross multiply
    989,435.94x = 1,365,422.04 × 559,706.91
  4. Step 4: Simplify right side
    989,435.94x = 764,236,150,854.30
  5. Step 5: Solve for x
    x = 764,236,150,854.30/989,435.94
  6. Step 6: Final answer
    x = 772,395.79

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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.