Home / 840,893.79-1,160,280.64-496,785.75

Finding the Fourth Proportional to 840,893.79, 1,160,280.64 and 496,785.75

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Solution

The fourth proportional to 840,893.79, 1,160,280.64 and 496,785.75 is: 685,474.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,893.79 : 1,160,280.64 = 496,785.75 : x
  2. Step 2: Convert to fraction form
    840,893.79/1,160,280.64 = 496,785.75/x
  3. Step 3: Cross multiply
    840,893.79x = 1,160,280.64 × 496,785.75
  4. Step 4: Simplify right side
    840,893.79x = 576,410,887,952.88
  5. Step 5: Solve for x
    x = 576,410,887,952.88/840,893.79
  6. Step 6: Final answer
    x = 685,474.07

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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.