Home / 992,456.40-1,487,955.60-393,121.20

Finding the Fourth Proportional to 992,456.40, 1,487,955.60 and 393,121.20

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Solution

The fourth proportional to 992,456.40, 1,487,955.60 and 393,121.20 is: 589,393.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,456.40 : 1,487,955.60 = 393,121.20 : x
  2. Step 2: Convert to fraction form
    992,456.40/1,487,955.60 = 393,121.20/x
  3. Step 3: Cross multiply
    992,456.40x = 1,487,955.60 × 393,121.20
  4. Step 4: Simplify right side
    992,456.40x = 584,946,891,018.72
  5. Step 5: Solve for x
    x = 584,946,891,018.72/992,456.40
  6. Step 6: Final answer
    x = 589,393.04

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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.