Home / 628,947.45-867,943.80-342,466.85

Finding the Fourth Proportional to 628,947.45, 867,943.80 and 342,466.85

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Solution

The fourth proportional to 628,947.45, 867,943.80 and 342,466.85 is: 472,602.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,947.45 : 867,943.80 = 342,466.85 : x
  2. Step 2: Convert to fraction form
    628,947.45/867,943.80 = 342,466.85/x
  3. Step 3: Cross multiply
    628,947.45x = 867,943.80 × 342,466.85
  4. Step 4: Simplify right side
    628,947.45x = 297,241,974,823.31
  5. Step 5: Solve for x
    x = 297,241,974,823.31/628,947.45
  6. Step 6: Final answer
    x = 472,602.24

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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.