Home / 554,477.20-765,183.12-306,127.15

Finding the Fourth Proportional to 554,477.20, 765,183.12 and 306,127.15

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Solution

The fourth proportional to 554,477.20, 765,183.12 and 306,127.15 is: 422,458.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,477.20 : 765,183.12 = 306,127.15 : x
  2. Step 2: Convert to fraction form
    554,477.20/765,183.12 = 306,127.15/x
  3. Step 3: Cross multiply
    554,477.20x = 765,183.12 × 306,127.15
  4. Step 4: Simplify right side
    554,477.20x = 234,243,327,753.71
  5. Step 5: Solve for x
    x = 234,243,327,753.71/554,477.20
  6. Step 6: Final answer
    x = 422,458.00

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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.