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Finding the Fourth Proportional to 521,844.21, 720,179.37 and 292,389.03

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Solution

The fourth proportional to 521,844.21, 720,179.37 and 292,389.03 is: 403,516.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,844.21 : 720,179.37 = 292,389.03 : x
  2. Step 2: Convert to fraction form
    521,844.21/720,179.37 = 292,389.03/x
  3. Step 3: Cross multiply
    521,844.21x = 720,179.37 × 292,389.03
  4. Step 4: Simplify right side
    521,844.21x = 210,572,547,420.31
  5. Step 5: Solve for x
    x = 210,572,547,420.31/521,844.21
  6. Step 6: Final answer
    x = 403,516.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.