Home / 497,835.76-687,065.18-306,844.24

Finding the Fourth Proportional to 497,835.76, 687,065.18 and 306,844.24

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Solution

The fourth proportional to 497,835.76, 687,065.18 and 306,844.24 is: 423,477.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,835.76 : 687,065.18 = 306,844.24 : x
  2. Step 2: Convert to fraction form
    497,835.76/687,065.18 = 306,844.24/x
  3. Step 3: Cross multiply
    497,835.76x = 687,065.18 × 306,844.24
  4. Step 4: Simplify right side
    497,835.76x = 210,821,992,987.56
  5. Step 5: Solve for x
    x = 210,821,992,987.56/497,835.76
  6. Step 6: Final answer
    x = 423,477.00

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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.