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Finding the Fourth Proportional to 684,314.01, 944,270.91 and 378,349.07

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Solution

The fourth proportional to 684,314.01, 944,270.91 and 378,349.07 is: 522,076.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,314.01 : 944,270.91 = 378,349.07 : x
  2. Step 2: Convert to fraction form
    684,314.01/944,270.91 = 378,349.07/x
  3. Step 3: Cross multiply
    684,314.01x = 944,270.91 × 378,349.07
  4. Step 4: Simplify right side
    684,314.01x = 357,264,015,905.20
  5. Step 5: Solve for x
    x = 357,264,015,905.20/684,314.01
  6. Step 6: Final answer
    x = 522,076.14

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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.