Home / 628,945.56-867,949.02-342,464.22

Finding the Fourth Proportional to 628,945.56, 867,949.02 and 342,464.22

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Solution

The fourth proportional to 628,945.56, 867,949.02 and 342,464.22 is: 472,602.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,945.56 : 867,949.02 = 342,464.22 : x
  2. Step 2: Convert to fraction form
    628,945.56/867,949.02 = 342,464.22/x
  3. Step 3: Cross multiply
    628,945.56x = 867,949.02 × 342,464.22
  4. Step 4: Simplify right side
    628,945.56x = 297,241,484,134.06
  5. Step 5: Solve for x
    x = 297,241,484,134.06/628,945.56
  6. Step 6: Final answer
    x = 472,602.88

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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.