Home / 772,642.40-1,158,963.60-679,253.60

Finding the Fourth Proportional to 772,642.40, 1,158,963.60 and 679,253.60

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Solution

The fourth proportional to 772,642.40, 1,158,963.60 and 679,253.60 is: 1,018,880.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,642.40 : 1,158,963.60 = 679,253.60 : x
  2. Step 2: Convert to fraction form
    772,642.40/1,158,963.60 = 679,253.60/x
  3. Step 3: Cross multiply
    772,642.40x = 1,158,963.60 × 679,253.60
  4. Step 4: Simplify right side
    772,642.40x = 787,230,197,568.96
  5. Step 5: Solve for x
    x = 787,230,197,568.96/772,642.40
  6. Step 6: Final answer
    x = 1,018,880.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.