Home / 497,875.60-687,130.05-304,243.48

Finding the Fourth Proportional to 497,875.60, 687,130.05 and 304,243.48

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Solution

The fourth proportional to 497,875.60, 687,130.05 and 304,243.48 is: 419,893.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,875.60 : 687,130.05 = 304,243.48 : x
  2. Step 2: Convert to fraction form
    497,875.60/687,130.05 = 304,243.48/x
  3. Step 3: Cross multiply
    497,875.60x = 687,130.05 × 304,243.48
  4. Step 4: Simplify right side
    497,875.60x = 209,054,837,624.57
  5. Step 5: Solve for x
    x = 209,054,837,624.57/497,875.60
  6. Step 6: Final answer
    x = 419,893.72

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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.