Home / 688,987.48-950,890.14-387,181.24

Finding the Fourth Proportional to 688,987.48, 950,890.14 and 387,181.24

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Solution

The fourth proportional to 688,987.48, 950,890.14 and 387,181.24 is: 534,359.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,987.48 : 950,890.14 = 387,181.24 : x
  2. Step 2: Convert to fraction form
    688,987.48/950,890.14 = 387,181.24/x
  3. Step 3: Cross multiply
    688,987.48x = 950,890.14 × 387,181.24
  4. Step 4: Simplify right side
    688,987.48x = 368,166,823,508.97
  5. Step 5: Solve for x
    x = 368,166,823,508.97/688,987.48
  6. Step 6: Final answer
    x = 534,359.24

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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.