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Finding the Fourth Proportional to 580,460.40, 870,210.72 and 220,556.76

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Solution

The fourth proportional to 580,460.40, 870,210.72 and 220,556.76 is: 330,652.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,460.40 : 870,210.72 = 220,556.76 : x
  2. Step 2: Convert to fraction form
    580,460.40/870,210.72 = 220,556.76/x
  3. Step 3: Cross multiply
    580,460.40x = 870,210.72 × 220,556.76
  4. Step 4: Simplify right side
    580,460.40x = 191,930,856,920.47
  5. Step 5: Solve for x
    x = 191,930,856,920.47/580,460.40
  6. Step 6: Final answer
    x = 330,652.80

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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.