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Finding the Fourth Proportional to 684,368.41, 944,434.50 and 378,465.37

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Solution

The fourth proportional to 684,368.41, 944,434.50 and 378,465.37 is: 522,285.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,368.41 : 944,434.50 = 378,465.37 : x
  2. Step 2: Convert to fraction form
    684,368.41/944,434.50 = 378,465.37/x
  3. Step 3: Cross multiply
    684,368.41x = 944,434.50 × 378,465.37
  4. Step 4: Simplify right side
    684,368.41x = 357,435,752,483.27
  5. Step 5: Solve for x
    x = 357,435,752,483.27/684,368.41
  6. Step 6: Final answer
    x = 522,285.58

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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.