Home / 834,493.80-1,251,965.36-429,465.32

Finding the Fourth Proportional to 834,493.80, 1,251,965.36 and 429,465.32

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Solution

The fourth proportional to 834,493.80, 1,251,965.36 and 429,465.32 is: 644,313.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    834,493.80 : 1,251,965.36 = 429,465.32 : x
  2. Step 2: Convert to fraction form
    834,493.80/1,251,965.36 = 429,465.32/x
  3. Step 3: Cross multiply
    834,493.80x = 1,251,965.36 × 429,465.32
  4. Step 4: Simplify right side
    834,493.80x = 537,675,703,961.32
  5. Step 5: Solve for x
    x = 537,675,703,961.32/834,493.80
  6. Step 6: Final answer
    x = 644,313.60

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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.