Home / 650,495.52-975,743.28-428,827.68

Finding the Fourth Proportional to 650,495.52, 975,743.28 and 428,827.68

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Solution

The fourth proportional to 650,495.52, 975,743.28 and 428,827.68 is: 643,241.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,495.52 : 975,743.28 = 428,827.68 : x
  2. Step 2: Convert to fraction form
    650,495.52/975,743.28 = 428,827.68/x
  3. Step 3: Cross multiply
    650,495.52x = 975,743.28 × 428,827.68
  4. Step 4: Simplify right side
    650,495.52x = 418,425,727,037.99
  5. Step 5: Solve for x
    x = 418,425,727,037.99/650,495.52
  6. Step 6: Final answer
    x = 643,241.52

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Double scale
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Similar ratio
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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.