Home / 684,712.85-1,027,509.91-369,387.41

Finding the Fourth Proportional to 684,712.85, 1,027,509.91 and 369,387.41

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Solution

The fourth proportional to 684,712.85, 1,027,509.91 and 369,387.41 is: 554,318.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,712.85 : 1,027,509.91 = 369,387.41 : x
  2. Step 2: Convert to fraction form
    684,712.85/1,027,509.91 = 369,387.41/x
  3. Step 3: Cross multiply
    684,712.85x = 1,027,509.91 × 369,387.41
  4. Step 4: Simplify right side
    684,712.85x = 379,549,218,343.22
  5. Step 5: Solve for x
    x = 379,549,218,343.22/684,712.85
  6. Step 6: Final answer
    x = 554,318.82

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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.