Home / 403,016.64-556,202.16-300,864.72

Finding the Fourth Proportional to 403,016.64, 556,202.16 and 300,864.72

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Solution

The fourth proportional to 403,016.64, 556,202.16 and 300,864.72 is: 415,222.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,016.64 : 556,202.16 = 300,864.72 : x
  2. Step 2: Convert to fraction form
    403,016.64/556,202.16 = 300,864.72/x
  3. Step 3: Cross multiply
    403,016.64x = 556,202.16 × 300,864.72
  4. Step 4: Simplify right side
    403,016.64x = 167,341,607,131.80
  5. Step 5: Solve for x
    x = 167,341,607,131.80/403,016.64
  6. Step 6: Final answer
    x = 415,222.58

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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.