Home / 759,512.92-1,048,125.12-428,342.56

Finding the Fourth Proportional to 759,512.92, 1,048,125.12 and 428,342.56

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Solution

The fourth proportional to 759,512.92, 1,048,125.12 and 428,342.56 is: 591,111.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,512.92 : 1,048,125.12 = 428,342.56 : x
  2. Step 2: Convert to fraction form
    759,512.92/1,048,125.12 = 428,342.56/x
  3. Step 3: Cross multiply
    759,512.92x = 1,048,125.12 × 428,342.56
  4. Step 4: Simplify right side
    759,512.92x = 448,956,597,101.11
  5. Step 5: Solve for x
    x = 448,956,597,101.11/759,512.92
  6. Step 6: Final answer
    x = 591,111.20

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Double scale
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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.