Home / 696,085.60-1,042,054.80-415,458.40

Finding the Fourth Proportional to 696,085.60, 1,042,054.80 and 415,458.40

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Solution

The fourth proportional to 696,085.60, 1,042,054.80 and 415,458.40 is: 621,949.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,085.60 : 1,042,054.80 = 415,458.40 : x
  2. Step 2: Convert to fraction form
    696,085.60/1,042,054.80 = 415,458.40/x
  3. Step 3: Cross multiply
    696,085.60x = 1,042,054.80 × 415,458.40
  4. Step 4: Simplify right side
    696,085.60x = 432,930,419,920.32
  5. Step 5: Solve for x
    x = 432,930,419,920.32/696,085.60
  6. Step 6: Final answer
    x = 621,949.97

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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.