Home / 674,721.77-931,115.25-368,800.16

Finding the Fourth Proportional to 674,721.77, 931,115.25 and 368,800.16

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Solution

The fourth proportional to 674,721.77, 931,115.25 and 368,800.16 is: 508,943.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,721.77 : 931,115.25 = 368,800.16 : x
  2. Step 2: Convert to fraction form
    674,721.77/931,115.25 = 368,800.16/x
  3. Step 3: Cross multiply
    674,721.77x = 931,115.25 × 368,800.16
  4. Step 4: Simplify right side
    674,721.77x = 343,395,453,178.44
  5. Step 5: Solve for x
    x = 343,395,453,178.44/674,721.77
  6. Step 6: Final answer
    x = 508,943.79

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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.