Home / 497,908.85-687,111.08-283,048.97

Finding the Fourth Proportional to 497,908.85, 687,111.08 and 283,048.97

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Solution

The fourth proportional to 497,908.85, 687,111.08 and 283,048.97 is: 390,605.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,908.85 : 687,111.08 = 283,048.97 : x
  2. Step 2: Convert to fraction form
    497,908.85/687,111.08 = 283,048.97/x
  3. Step 3: Cross multiply
    497,908.85x = 687,111.08 × 283,048.97
  4. Step 4: Simplify right side
    497,908.85x = 194,486,078,618.79
  5. Step 5: Solve for x
    x = 194,486,078,618.79/497,908.85
  6. Step 6: Final answer
    x = 390,605.79

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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.