Home / 497,945.42-687,161.40-283,085.54

Finding the Fourth Proportional to 497,945.42, 687,161.40 and 283,085.54

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Solution

The fourth proportional to 497,945.42, 687,161.40 and 283,085.54 is: 390,656.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,945.42 : 687,161.40 = 283,085.54 : x
  2. Step 2: Convert to fraction form
    497,945.42/687,161.40 = 283,085.54/x
  3. Step 3: Cross multiply
    497,945.42x = 687,161.40 × 283,085.54
  4. Step 4: Simplify right side
    497,945.42x = 194,525,455,986.16
  5. Step 5: Solve for x
    x = 194,525,455,986.16/497,945.42
  6. Step 6: Final answer
    x = 390,656.18

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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.