Home / 743,080.32-1,025,487-420,804

Finding the Fourth Proportional to 743,080.32, 1,025,487 and 420,804

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Solution

The fourth proportional to 743,080.32, 1,025,487 and 420,804 is: 580,730.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,080.32 : 1,025,487 = 420,804 : x
  2. Step 2: Convert to fraction form
    743,080.32/1,025,487 = 420,804/x
  3. Step 3: Cross multiply
    743,080.32x = 1,025,487 × 420,804
  4. Step 4: Simplify right side
    743,080.32x = 431,529,031,548
  5. Step 5: Solve for x
    x = 431,529,031,548/743,080.32
  6. Step 6: Final answer
    x = 580,730.00

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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.