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Finding the Fourth Proportional to 522,095.02, 720,447.11 and 289,528.63

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Solution

The fourth proportional to 522,095.02, 720,447.11 and 289,528.63 is: 399,525.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,095.02 : 720,447.11 = 289,528.63 : x
  2. Step 2: Convert to fraction form
    522,095.02/720,447.11 = 289,528.63/x
  3. Step 3: Cross multiply
    522,095.02x = 720,447.11 × 289,528.63
  4. Step 4: Simplify right side
    522,095.02x = 208,590,062,582.73
  5. Step 5: Solve for x
    x = 208,590,062,582.73/522,095.02
  6. Step 6: Final answer
    x = 399,525.10

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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.