Home / 685,290.32-945,685.64-375,192.32

Finding the Fourth Proportional to 685,290.32, 945,685.64 and 375,192.32

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Solution

The fourth proportional to 685,290.32, 945,685.64 and 375,192.32 is: 517,757.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,290.32 : 945,685.64 = 375,192.32 : x
  2. Step 2: Convert to fraction form
    685,290.32/945,685.64 = 375,192.32/x
  3. Step 3: Cross multiply
    685,290.32x = 945,685.64 × 375,192.32
  4. Step 4: Simplify right side
    685,290.32x = 354,813,989,262.29
  5. Step 5: Solve for x
    x = 354,813,989,262.29/685,290.32
  6. Step 6: Final answer
    x = 517,757.19

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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.