Home / 738,123.20-1,107,703.20-472,529.60

Finding the Fourth Proportional to 738,123.20, 1,107,703.20 and 472,529.60

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Solution

The fourth proportional to 738,123.20, 1,107,703.20 and 472,529.60 is: 709,126.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,123.20 : 1,107,703.20 = 472,529.60 : x
  2. Step 2: Convert to fraction form
    738,123.20/1,107,703.20 = 472,529.60/x
  3. Step 3: Cross multiply
    738,123.20x = 1,107,703.20 × 472,529.60
  4. Step 4: Simplify right side
    738,123.20x = 523,422,550,014.72
  5. Step 5: Solve for x
    x = 523,422,550,014.72/738,123.20
  6. Step 6: Final answer
    x = 709,126.27

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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.