Home / 524,719.20-787,467.60-209,402.40

Finding the Fourth Proportional to 524,719.20, 787,467.60 and 209,402.40

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Solution

The fourth proportional to 524,719.20, 787,467.60 and 209,402.40 is: 314,258.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,719.20 : 787,467.60 = 209,402.40 : x
  2. Step 2: Convert to fraction form
    524,719.20/787,467.60 = 209,402.40/x
  3. Step 3: Cross multiply
    524,719.20x = 787,467.60 × 209,402.40
  4. Step 4: Simplify right side
    524,719.20x = 164,897,605,362.24
  5. Step 5: Solve for x
    x = 164,897,605,362.24/524,719.20
  6. Step 6: Final answer
    x = 314,258.76

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1.5x scale

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.