Home / 654,211.20-981,316.80-548,457.60

Finding the Fourth Proportional to 654,211.20, 981,316.80 and 548,457.60

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Solution

The fourth proportional to 654,211.20, 981,316.80 and 548,457.60 is: 822,686.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,211.20 : 981,316.80 = 548,457.60 : x
  2. Step 2: Convert to fraction form
    654,211.20/981,316.80 = 548,457.60/x
  3. Step 3: Cross multiply
    654,211.20x = 981,316.80 × 548,457.60
  4. Step 4: Simplify right side
    654,211.20x = 538,210,656,967.68
  5. Step 5: Solve for x
    x = 538,210,656,967.68/654,211.20
  6. Step 6: Final answer
    x = 822,686.40

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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.