Home / 743,586.98-1,026,147.52-421,358.50

Finding the Fourth Proportional to 743,586.98, 1,026,147.52 and 421,358.50

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Solution

The fourth proportional to 743,586.98, 1,026,147.52 and 421,358.50 is: 581,473.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,586.98 : 1,026,147.52 = 421,358.50 : x
  2. Step 2: Convert to fraction form
    743,586.98/1,026,147.52 = 421,358.50/x
  3. Step 3: Cross multiply
    743,586.98x = 1,026,147.52 × 421,358.50
  4. Step 4: Simplify right side
    743,586.98x = 432,375,977,321.13
  5. Step 5: Solve for x
    x = 432,375,977,321.13/743,586.98
  6. Step 6: Final answer
    x = 581,473.30

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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.