Home / 725,192.52-1,087,415.28-325,490.64

Finding the Fourth Proportional to 725,192.52, 1,087,415.28 and 325,490.64

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Solution

The fourth proportional to 725,192.52, 1,087,415.28 and 325,490.64 is: 488,068.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,192.52 : 1,087,415.28 = 325,490.64 : x
  2. Step 2: Convert to fraction form
    725,192.52/1,087,415.28 = 325,490.64/x
  3. Step 3: Cross multiply
    725,192.52x = 1,087,415.28 × 325,490.64
  4. Step 4: Simplify right side
    725,192.52x = 353,943,495,432.98
  5. Step 5: Solve for x
    x = 353,943,495,432.98/725,192.52
  6. Step 6: Final answer
    x = 488,068.32

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.