Home / 482,743.40-724,244.70-430,514.60

Finding the Fourth Proportional to 482,743.40, 724,244.70 and 430,514.60

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Solution

The fourth proportional to 482,743.40, 724,244.70 and 430,514.60 is: 645,887.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,743.40 : 724,244.70 = 430,514.60 : x
  2. Step 2: Convert to fraction form
    482,743.40/724,244.70 = 430,514.60/x
  3. Step 3: Cross multiply
    482,743.40x = 724,244.70 × 430,514.60
  4. Step 4: Simplify right side
    482,743.40x = 311,797,917,322.62
  5. Step 5: Solve for x
    x = 311,797,917,322.62/482,743.40
  6. Step 6: Final answer
    x = 645,887.48

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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.