Home / 528,045.60-789,764.40-472,288.80

Finding the Fourth Proportional to 528,045.60, 789,764.40 and 472,288.80

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Solution

The fourth proportional to 528,045.60, 789,764.40 and 472,288.80 is: 706,372.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,045.60 : 789,764.40 = 472,288.80 : x
  2. Step 2: Convert to fraction form
    528,045.60/789,764.40 = 472,288.80/x
  3. Step 3: Cross multiply
    528,045.60x = 789,764.40 × 472,288.80
  4. Step 4: Simplify right side
    528,045.60x = 372,996,880,758.72
  5. Step 5: Solve for x
    x = 372,996,880,758.72/528,045.60
  6. Step 6: Final answer
    x = 706,372.48

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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.