Home / 528,811.72-792,919.50-173,730.40

Finding the Fourth Proportional to 528,811.72, 792,919.50 and 173,730.40

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Solution

The fourth proportional to 528,811.72, 792,919.50 and 173,730.40 is: 260,497.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,811.72 : 792,919.50 = 173,730.40 : x
  2. Step 2: Convert to fraction form
    528,811.72/792,919.50 = 173,730.40/x
  3. Step 3: Cross multiply
    528,811.72x = 792,919.50 × 173,730.40
  4. Step 4: Simplify right side
    528,811.72x = 137,754,221,902.80
  5. Step 5: Solve for x
    x = 137,754,221,902.80/528,811.72
  6. Step 6: Final answer
    x = 260,497.67

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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.