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Finding the Fourth Proportional to 387,498.33, 535,008.60 and 346,535.37

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Solution

The fourth proportional to 387,498.33, 535,008.60 and 346,535.37 is: 478,452.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,498.33 : 535,008.60 = 346,535.37 : x
  2. Step 2: Convert to fraction form
    387,498.33/535,008.60 = 346,535.37/x
  3. Step 3: Cross multiply
    387,498.33x = 535,008.60 × 346,535.37
  4. Step 4: Simplify right side
    387,498.33x = 185,399,403,154.18
  5. Step 5: Solve for x
    x = 185,399,403,154.18/387,498.33
  6. Step 6: Final answer
    x = 478,452.13

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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.