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Finding the Fourth Proportional to 716,853.52, 989,250.02 and 394,556.72

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Solution

The fourth proportional to 716,853.52, 989,250.02 and 394,556.72 is: 544,483.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,853.52 : 989,250.02 = 394,556.72 : x
  2. Step 2: Convert to fraction form
    716,853.52/989,250.02 = 394,556.72/x
  3. Step 3: Cross multiply
    716,853.52x = 989,250.02 × 394,556.72
  4. Step 4: Simplify right side
    716,853.52x = 390,315,236,232.10
  5. Step 5: Solve for x
    x = 390,315,236,232.10/716,853.52
  6. Step 6: Final answer
    x = 544,483.95

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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.