Home / 661,719.40-992,708.70-282,639.40

Finding the Fourth Proportional to 661,719.40, 992,708.70 and 282,639.40

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Solution

The fourth proportional to 661,719.40, 992,708.70 and 282,639.40 is: 424,014.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,719.40 : 992,708.70 = 282,639.40 : x
  2. Step 2: Convert to fraction form
    661,719.40/992,708.70 = 282,639.40/x
  3. Step 3: Cross multiply
    661,719.40x = 992,708.70 × 282,639.40
  4. Step 4: Simplify right side
    661,719.40x = 280,578,591,342.78
  5. Step 5: Solve for x
    x = 280,578,591,342.78/661,719.40
  6. Step 6: Final answer
    x = 424,014.46

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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.