Home / 743,990.68-1,026,663.54-404,455.96

Finding the Fourth Proportional to 743,990.68, 1,026,663.54 and 404,455.96

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Solution

The fourth proportional to 743,990.68, 1,026,663.54 and 404,455.96 is: 558,125.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,990.68 : 1,026,663.54 = 404,455.96 : x
  2. Step 2: Convert to fraction form
    743,990.68/1,026,663.54 = 404,455.96/x
  3. Step 3: Cross multiply
    743,990.68x = 1,026,663.54 × 404,455.96
  4. Step 4: Simplify right side
    743,990.68x = 415,240,187,667.70
  5. Step 5: Solve for x
    x = 415,240,187,667.70/743,990.68
  6. Step 6: Final answer
    x = 558,125.52

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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.