Home / 945,218.40-1,418,749.20-472,437.60

Finding the Fourth Proportional to 945,218.40, 1,418,749.20 and 472,437.60

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Solution

The fourth proportional to 945,218.40, 1,418,749.20 and 472,437.60 is: 709,117.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,218.40 : 1,418,749.20 = 472,437.60 : x
  2. Step 2: Convert to fraction form
    945,218.40/1,418,749.20 = 472,437.60/x
  3. Step 3: Cross multiply
    945,218.40x = 1,418,749.20 × 472,437.60
  4. Step 4: Simplify right side
    945,218.40x = 670,270,467,049.92
  5. Step 5: Solve for x
    x = 670,270,467,049.92/945,218.40
  6. Step 6: Final answer
    x = 709,117.03

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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.