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Finding the Fourth Proportional to 585,968.91, 879,041.11 and 212,079.39

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Solution

The fourth proportional to 585,968.91, 879,041.11 and 212,079.39 is: 318,150.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,968.91 : 879,041.11 = 212,079.39 : x
  2. Step 2: Convert to fraction form
    585,968.91/879,041.11 = 212,079.39/x
  3. Step 3: Cross multiply
    585,968.91x = 879,041.11 × 212,079.39
  4. Step 4: Simplify right side
    585,968.91x = 186,426,499,760.07
  5. Step 5: Solve for x
    x = 186,426,499,760.07/585,968.91
  6. Step 6: Final answer
    x = 318,150.84

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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.