Home / 528,225.60-792,434.40-173,140.80

Finding the Fourth Proportional to 528,225.60, 792,434.40 and 173,140.80

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Solution

The fourth proportional to 528,225.60, 792,434.40 and 173,140.80 is: 259,742.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,225.60 : 792,434.40 = 173,140.80 : x
  2. Step 2: Convert to fraction form
    528,225.60/792,434.40 = 173,140.80/x
  3. Step 3: Cross multiply
    528,225.60x = 792,434.40 × 173,140.80
  4. Step 4: Simplify right side
    528,225.60x = 137,202,725,963.52
  5. Step 5: Solve for x
    x = 137,202,725,963.52/528,225.60
  6. Step 6: Final answer
    x = 259,742.67

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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.