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Finding the Fourth Proportional to 378,673.38, 564,908.99 and 368,377.47

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Solution

The fourth proportional to 378,673.38, 564,908.99 and 368,377.47 is: 549,549.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,673.38 : 564,908.99 = 368,377.47 : x
  2. Step 2: Convert to fraction form
    378,673.38/564,908.99 = 368,377.47/x
  3. Step 3: Cross multiply
    378,673.38x = 564,908.99 × 368,377.47
  4. Step 4: Simplify right side
    378,673.38x = 208,099,742,674.57
  5. Step 5: Solve for x
    x = 208,099,742,674.57/378,673.38
  6. Step 6: Final answer
    x = 549,549.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.