Home / 710,306.78-1,065,724.86-426,201.24

Finding the Fourth Proportional to 710,306.78, 1,065,724.86 and 426,201.24

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Solution

The fourth proportional to 710,306.78, 1,065,724.86 and 426,201.24 is: 639,460.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,306.78 : 1,065,724.86 = 426,201.24 : x
  2. Step 2: Convert to fraction form
    710,306.78/1,065,724.86 = 426,201.24/x
  3. Step 3: Cross multiply
    710,306.78x = 1,065,724.86 × 426,201.24
  4. Step 4: Simplify right side
    710,306.78x = 454,213,258,429.08
  5. Step 5: Solve for x
    x = 454,213,258,429.08/710,306.78
  6. Step 6: Final answer
    x = 639,460.68

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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.