Home / 628,937.32-867,921.06-342,460.84

Finding the Fourth Proportional to 628,937.32, 867,921.06 and 342,460.84

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Solution

The fourth proportional to 628,937.32, 867,921.06 and 342,460.84 is: 472,589.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,937.32 : 867,921.06 = 342,460.84 : x
  2. Step 2: Convert to fraction form
    628,937.32/867,921.06 = 342,460.84/x
  3. Step 3: Cross multiply
    628,937.32x = 867,921.06 × 342,460.84
  4. Step 4: Simplify right side
    628,937.32x = 297,228,975,261.29
  5. Step 5: Solve for x
    x = 297,228,975,261.29/628,937.32
  6. Step 6: Final answer
    x = 472,589.18

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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.