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Finding the Fourth Proportional to 398,683.35, 595,483.77 and 360,674.40

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Solution

The fourth proportional to 398,683.35, 595,483.77 and 360,674.40 is: 538,712.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,683.35 : 595,483.77 = 360,674.40 : x
  2. Step 2: Convert to fraction form
    398,683.35/595,483.77 = 360,674.40/x
  3. Step 3: Cross multiply
    398,683.35x = 595,483.77 × 360,674.40
  4. Step 4: Simplify right side
    398,683.35x = 214,775,752,801.30
  5. Step 5: Solve for x
    x = 214,775,752,801.30/398,683.35
  6. Step 6: Final answer
    x = 538,712.62

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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.