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Finding the Fourth Proportional to 684,616.07, 944,697.48 and 378,643.83

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Solution

The fourth proportional to 684,616.07, 944,697.48 and 378,643.83 is: 522,488.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,616.07 : 944,697.48 = 378,643.83 : x
  2. Step 2: Convert to fraction form
    684,616.07/944,697.48 = 378,643.83/x
  3. Step 3: Cross multiply
    684,616.07x = 944,697.48 × 378,643.83
  4. Step 4: Simplify right side
    684,616.07x = 357,703,874,499.83
  5. Step 5: Solve for x
    x = 357,703,874,499.83/684,616.07
  6. Step 6: Final answer
    x = 522,488.28

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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.