Home / 743,525.20-1,026,062.26-421,296.72

Finding the Fourth Proportional to 743,525.20, 1,026,062.26 and 421,296.72

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Solution

The fourth proportional to 743,525.20, 1,026,062.26 and 421,296.72 is: 581,388.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,525.20 : 1,026,062.26 = 421,296.72 : x
  2. Step 2: Convert to fraction form
    743,525.20/1,026,062.26 = 421,296.72/x
  3. Step 3: Cross multiply
    743,525.20x = 1,026,062.26 × 421,296.72
  4. Step 4: Simplify right side
    743,525.20x = 432,276,664,653.79
  5. Step 5: Solve for x
    x = 432,276,664,653.79/743,525.20
  6. Step 6: Final answer
    x = 581,388.05

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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.