Home / 815,437.13-1,222,671.14-310,035.11

Finding the Fourth Proportional to 815,437.13, 1,222,671.14 and 310,035.11

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Solution

The fourth proportional to 815,437.13, 1,222,671.14 and 310,035.11 is: 464,868.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,437.13 : 1,222,671.14 = 310,035.11 : x
  2. Step 2: Convert to fraction form
    815,437.13/1,222,671.14 = 310,035.11/x
  3. Step 3: Cross multiply
    815,437.13x = 1,222,671.14 × 310,035.11
  4. Step 4: Simplify right side
    815,437.13x = 379,070,973,720.19
  5. Step 5: Solve for x
    x = 379,070,973,720.19/815,437.13
  6. Step 6: Final answer
    x = 464,868.43

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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.