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Finding the Fourth Proportional to 536,400.30, 740,381.40 and 307,086.06

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Solution

The fourth proportional to 536,400.30, 740,381.40 and 307,086.06 is: 423,864.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,400.30 : 740,381.40 = 307,086.06 : x
  2. Step 2: Convert to fraction form
    536,400.30/740,381.40 = 307,086.06/x
  3. Step 3: Cross multiply
    536,400.30x = 740,381.40 × 307,086.06
  4. Step 4: Simplify right side
    536,400.30x = 227,360,807,023.28
  5. Step 5: Solve for x
    x = 227,360,807,023.28/536,400.30
  6. Step 6: Final answer
    x = 423,864.06

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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.