Home / 612,380.24-845,036.87-340,431.59

Finding the Fourth Proportional to 612,380.24, 845,036.87 and 340,431.59

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Solution

The fourth proportional to 612,380.24, 845,036.87 and 340,431.59 is: 469,768.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,380.24 : 845,036.87 = 340,431.59 : x
  2. Step 2: Convert to fraction form
    612,380.24/845,036.87 = 340,431.59/x
  3. Step 3: Cross multiply
    612,380.24x = 845,036.87 × 340,431.59
  4. Step 4: Simplify right side
    612,380.24x = 287,677,241,888.62
  5. Step 5: Solve for x
    x = 287,677,241,888.62/612,380.24
  6. Step 6: Final answer
    x = 469,768.98

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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.