Home / 684,726.72-1,027,530.72-369,401.28

Finding the Fourth Proportional to 684,726.72, 1,027,530.72 and 369,401.28

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Solution

The fourth proportional to 684,726.72, 1,027,530.72 and 369,401.28 is: 554,339.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,726.72 : 1,027,530.72 = 369,401.28 : x
  2. Step 2: Convert to fraction form
    684,726.72/1,027,530.72 = 369,401.28/x
  3. Step 3: Cross multiply
    684,726.72x = 1,027,530.72 × 369,401.28
  4. Step 4: Simplify right side
    684,726.72x = 379,571,163,207.32
  5. Step 5: Solve for x
    x = 379,571,163,207.32/684,726.72
  6. Step 6: Final answer
    x = 554,339.64

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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.