Home / 400,741.37-553,019.14-216,979.05

Finding the Fourth Proportional to 400,741.37, 553,019.14 and 216,979.05

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Solution

The fourth proportional to 400,741.37, 553,019.14 and 216,979.05 is: 299,428.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,741.37 : 553,019.14 = 216,979.05 : x
  2. Step 2: Convert to fraction form
    400,741.37/553,019.14 = 216,979.05/x
  3. Step 3: Cross multiply
    400,741.37x = 553,019.14 × 216,979.05
  4. Step 4: Simplify right side
    400,741.37x = 119,993,567,629.02
  5. Step 5: Solve for x
    x = 119,993,567,629.02/400,741.37
  6. Step 6: Final answer
    x = 299,428.95

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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.