Home / 557,345.94-769,146.24-315,621.96

Finding the Fourth Proportional to 557,345.94, 769,146.24 and 315,621.96

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Solution

The fourth proportional to 557,345.94, 769,146.24 and 315,621.96 is: 435,563.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,345.94 : 769,146.24 = 315,621.96 : x
  2. Step 2: Convert to fraction form
    557,345.94/769,146.24 = 315,621.96/x
  3. Step 3: Cross multiply
    557,345.94x = 769,146.24 × 315,621.96
  4. Step 4: Simplify right side
    557,345.94x = 242,759,443,795.43
  5. Step 5: Solve for x
    x = 242,759,443,795.43/557,345.94
  6. Step 6: Final answer
    x = 435,563.31

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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.