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Finding the Fourth Proportional to 566,394.42, 781,607.97 and 311,740.14

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Solution

The fourth proportional to 566,394.42, 781,607.97 and 311,740.14 is: 430,192.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,394.42 : 781,607.97 = 311,740.14 : x
  2. Step 2: Convert to fraction form
    566,394.42/781,607.97 = 311,740.14/x
  3. Step 3: Cross multiply
    566,394.42x = 781,607.97 × 311,740.14
  4. Step 4: Simplify right side
    566,394.42x = 243,658,577,992.92
  5. Step 5: Solve for x
    x = 243,658,577,992.92/566,394.42
  6. Step 6: Final answer
    x = 430,192.41

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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.