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Finding the Fourth Proportional to 570,727.80, 787,604.04 and 316,078.74

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Solution

The fourth proportional to 570,727.80, 787,604.04 and 316,078.74 is: 436,188.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,727.80 : 787,604.04 = 316,078.74 : x
  2. Step 2: Convert to fraction form
    570,727.80/787,604.04 = 316,078.74/x
  3. Step 3: Cross multiply
    570,727.80x = 787,604.04 × 316,078.74
  4. Step 4: Simplify right side
    570,727.80x = 248,944,892,582.11
  5. Step 5: Solve for x
    x = 248,944,892,582.11/570,727.80
  6. Step 6: Final answer
    x = 436,188.48

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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.