Home / 743,970.45-1,026,650.65-404,438.70

Finding the Fourth Proportional to 743,970.45, 1,026,650.65 and 404,438.70

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Solution

The fourth proportional to 743,970.45, 1,026,650.65 and 404,438.70 is: 558,109.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,970.45 : 1,026,650.65 = 404,438.70 : x
  2. Step 2: Convert to fraction form
    743,970.45/1,026,650.65 = 404,438.70/x
  3. Step 3: Cross multiply
    743,970.45x = 1,026,650.65 × 404,438.70
  4. Step 4: Simplify right side
    743,970.45x = 415,217,254,240.16
  5. Step 5: Solve for x
    x = 415,217,254,240.16/743,970.45
  6. Step 6: Final answer
    x = 558,109.87

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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.