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Finding the Fourth Proportional to 898,993.48, 1,240,607.22 and 496,585.48

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Solution

The fourth proportional to 898,993.48, 1,240,607.22 and 496,585.48 is: 685,285.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,993.48 : 1,240,607.22 = 496,585.48 : x
  2. Step 2: Convert to fraction form
    898,993.48/1,240,607.22 = 496,585.48/x
  3. Step 3: Cross multiply
    898,993.48x = 1,240,607.22 × 496,585.48
  4. Step 4: Simplify right side
    898,993.48x = 616,067,531,835.17
  5. Step 5: Solve for x
    x = 616,067,531,835.17/898,993.48
  6. Step 6: Final answer
    x = 685,285.87

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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.