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Finding the Fourth Proportional to 654,374.40, 979,228.80 and 453,753.60

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Solution

The fourth proportional to 654,374.40, 979,228.80 and 453,753.60 is: 679,012.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,374.40 : 979,228.80 = 453,753.60 : x
  2. Step 2: Convert to fraction form
    654,374.40/979,228.80 = 453,753.60/x
  3. Step 3: Cross multiply
    654,374.40x = 979,228.80 × 453,753.60
  4. Step 4: Simplify right side
    654,374.40x = 444,328,593,223.68
  5. Step 5: Solve for x
    x = 444,328,593,223.68/654,374.40
  6. Step 6: Final answer
    x = 679,012.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.