Home / 743,890.55-1,026,569.64-404,358.80

Finding the Fourth Proportional to 743,890.55, 1,026,569.64 and 404,358.80

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Solution

The fourth proportional to 743,890.55, 1,026,569.64 and 404,358.80 is: 558,015.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,890.55 : 1,026,569.64 = 404,358.80 : x
  2. Step 2: Convert to fraction form
    743,890.55/1,026,569.64 = 404,358.80/x
  3. Step 3: Cross multiply
    743,890.55x = 1,026,569.64 × 404,358.80
  4. Step 4: Simplify right side
    743,890.55x = 415,102,467,746.83
  5. Step 5: Solve for x
    x = 415,102,467,746.83/743,890.55
  6. Step 6: Final answer
    x = 558,015.51

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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.