Home / 925,298.40-1,390,021.20-887,512.80

Finding the Fourth Proportional to 925,298.40, 1,390,021.20 and 887,512.80

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Solution

The fourth proportional to 925,298.40, 1,390,021.20 and 887,512.80 is: 1,333,258.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    925,298.40 : 1,390,021.20 = 887,512.80 : x
  2. Step 2: Convert to fraction form
    925,298.40/1,390,021.20 = 887,512.80/x
  3. Step 3: Cross multiply
    925,298.40x = 1,390,021.20 × 887,512.80
  4. Step 4: Simplify right side
    925,298.40x = 1,233,661,607,271.36
  5. Step 5: Solve for x
    x = 1,233,661,607,271.36/925,298.40
  6. Step 6: Final answer
    x = 1,333,258.12

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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.