Home / 743,890.05-1,026,568.95-404,358.30

Finding the Fourth Proportional to 743,890.05, 1,026,568.95 and 404,358.30

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Solution

The fourth proportional to 743,890.05, 1,026,568.95 and 404,358.30 is: 558,014.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,890.05 : 1,026,568.95 = 404,358.30 : x
  2. Step 2: Convert to fraction form
    743,890.05/1,026,568.95 = 404,358.30/x
  3. Step 3: Cross multiply
    743,890.05x = 1,026,568.95 × 404,358.30
  4. Step 4: Simplify right side
    743,890.05x = 415,101,675,454.79
  5. Step 5: Solve for x
    x = 415,101,675,454.79/743,890.05
  6. Step 6: Final answer
    x = 558,014.82

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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.