Home / 497,947.23-687,121.02-283,045.32

Finding the Fourth Proportional to 497,947.23, 687,121.02 and 283,045.32

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Solution

The fourth proportional to 497,947.23, 687,121.02 and 283,045.32 is: 390,576.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,947.23 : 687,121.02 = 283,045.32 : x
  2. Step 2: Convert to fraction form
    497,947.23/687,121.02 = 283,045.32/x
  3. Step 3: Cross multiply
    497,947.23x = 687,121.02 × 283,045.32
  4. Step 4: Simplify right side
    497,947.23x = 194,486,388,984.63
  5. Step 5: Solve for x
    x = 194,486,388,984.63/497,947.23
  6. Step 6: Final answer
    x = 390,576.30

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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.