Home / 638,132.40-880,611.31-347,746.49

Finding the Fourth Proportional to 638,132.40, 880,611.31 and 347,746.49

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Solution

The fourth proportional to 638,132.40, 880,611.31 and 347,746.49 is: 479,883.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,132.40 : 880,611.31 = 347,746.49 : x
  2. Step 2: Convert to fraction form
    638,132.40/880,611.31 = 347,746.49/x
  3. Step 3: Cross multiply
    638,132.40x = 880,611.31 × 347,746.49
  4. Step 4: Simplify right side
    638,132.40x = 306,229,492,106.80
  5. Step 5: Solve for x
    x = 306,229,492,106.80/638,132.40
  6. Step 6: Final answer
    x = 479,883.94

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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.