Home / 735,431.40-1,015,013.43-687,404.88

Finding the Fourth Proportional to 735,431.40, 1,015,013.43 and 687,404.88

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Solution

The fourth proportional to 735,431.40, 1,015,013.43 and 687,404.88 is: 948,729.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    735,431.40 : 1,015,013.43 = 687,404.88 : x
  2. Step 2: Convert to fraction form
    735,431.40/1,015,013.43 = 687,404.88/x
  3. Step 3: Cross multiply
    735,431.40x = 1,015,013.43 × 687,404.88
  4. Step 4: Simplify right side
    735,431.40x = 697,725,185,047.54
  5. Step 5: Solve for x
    x = 697,725,185,047.54/735,431.40
  6. Step 6: Final answer
    x = 948,729.12

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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.