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Finding the Fourth Proportional to 618,088.10, 925,471.04 and 392,225.67

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Solution

The fourth proportional to 618,088.10, 925,471.04 and 392,225.67 is: 587,284.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,088.10 : 925,471.04 = 392,225.67 : x
  2. Step 2: Convert to fraction form
    618,088.10/925,471.04 = 392,225.67/x
  3. Step 3: Cross multiply
    618,088.10x = 925,471.04 × 392,225.67
  4. Step 4: Simplify right side
    618,088.10x = 362,993,499,710.16
  5. Step 5: Solve for x
    x = 362,993,499,710.16/618,088.10
  6. Step 6: Final answer
    x = 587,284.41

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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.