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Finding the Fourth Proportional to 684,690.08, 944,854.64 and 378,758.48

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Solution

The fourth proportional to 684,690.08, 944,854.64 and 378,758.48 is: 522,676.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,690.08 : 944,854.64 = 378,758.48 : x
  2. Step 2: Convert to fraction form
    684,690.08/944,854.64 = 378,758.48/x
  3. Step 3: Cross multiply
    684,690.08x = 944,854.64 × 378,758.48
  4. Step 4: Simplify right side
    684,690.08x = 357,871,707,267.35
  5. Step 5: Solve for x
    x = 357,871,707,267.35/684,690.08
  6. Step 6: Final answer
    x = 522,676.93

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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.