Home / 743,924.88-1,026,594.72-421,664.64

Finding the Fourth Proportional to 743,924.88, 1,026,594.72 and 421,664.64

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Solution

The fourth proportional to 743,924.88, 1,026,594.72 and 421,664.64 is: 581,884.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,924.88 : 1,026,594.72 = 421,664.64 : x
  2. Step 2: Convert to fraction form
    743,924.88/1,026,594.72 = 421,664.64/x
  3. Step 3: Cross multiply
    743,924.88x = 1,026,594.72 × 421,664.64
  4. Step 4: Simplify right side
    743,924.88x = 432,878,693,034.70
  5. Step 5: Solve for x
    x = 432,878,693,034.70/743,924.88
  6. Step 6: Final answer
    x = 581,884.95

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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.