Home / 497,955.08-687,236.10-283,127.34

Finding the Fourth Proportional to 497,955.08, 687,236.10 and 283,127.34

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Solution

The fourth proportional to 497,955.08, 687,236.10 and 283,127.34 is: 390,748.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,955.08 : 687,236.10 = 283,127.34 : x
  2. Step 2: Convert to fraction form
    497,955.08/687,236.10 = 283,127.34/x
  3. Step 3: Cross multiply
    497,955.08x = 687,236.10 × 283,127.34
  4. Step 4: Simplify right side
    497,955.08x = 194,575,328,944.97
  5. Step 5: Solve for x
    x = 194,575,328,944.97/497,955.08
  6. Step 6: Final answer
    x = 390,748.76

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1.5x scale

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.