Home / 816,749.32-1,225,123.22-248,128.11

Finding the Fourth Proportional to 816,749.32, 1,225,123.22 and 248,128.11

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Solution

The fourth proportional to 816,749.32, 1,225,123.22 and 248,128.11 is: 372,191.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,749.32 : 1,225,123.22 = 248,128.11 : x
  2. Step 2: Convert to fraction form
    816,749.32/1,225,123.22 = 248,128.11/x
  3. Step 3: Cross multiply
    816,749.32x = 1,225,123.22 × 248,128.11
  4. Step 4: Simplify right side
    816,749.32x = 303,987,502,970.10
  5. Step 5: Solve for x
    x = 303,987,502,970.10/816,749.32
  6. Step 6: Final answer
    x = 372,191.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.