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Finding the Fourth Proportional to 522,006.21, 720,419.13 and 292,602.47

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Solution

The fourth proportional to 522,006.21, 720,419.13 and 292,602.47 is: 403,819.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,006.21 : 720,419.13 = 292,602.47 : x
  2. Step 2: Convert to fraction form
    522,006.21/720,419.13 = 292,602.47/x
  3. Step 3: Cross multiply
    522,006.21x = 720,419.13 × 292,602.47
  4. Step 4: Simplify right side
    522,006.21x = 210,796,413,271.16
  5. Step 5: Solve for x
    x = 210,796,413,271.16/522,006.21
  6. Step 6: Final answer
    x = 403,819.74

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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.