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Finding the Fourth Proportional to 501,996.96, 752,995.71 and 315,139.68

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Solution

The fourth proportional to 501,996.96, 752,995.71 and 315,139.68 is: 472,709.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,996.96 : 752,995.71 = 315,139.68 : x
  2. Step 2: Convert to fraction form
    501,996.96/752,995.71 = 315,139.68/x
  3. Step 3: Cross multiply
    501,996.96x = 752,995.71 × 315,139.68
  4. Step 4: Simplify right side
    501,996.96x = 237,298,827,090.77
  5. Step 5: Solve for x
    x = 237,298,827,090.77/501,996.96
  6. Step 6: Final answer
    x = 472,709.69

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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.