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Finding the Fourth Proportional to 575,760.60, 794,513.79 and 317,640.87

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Solution

The fourth proportional to 575,760.60, 794,513.79 and 317,640.87 is: 438,324.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,760.60 : 794,513.79 = 317,640.87 : x
  2. Step 2: Convert to fraction form
    575,760.60/794,513.79 = 317,640.87/x
  3. Step 3: Cross multiply
    575,760.60x = 794,513.79 × 317,640.87
  4. Step 4: Simplify right side
    575,760.60x = 252,370,051,482.60
  5. Step 5: Solve for x
    x = 252,370,051,482.60/575,760.60
  6. Step 6: Final answer
    x = 438,324.63

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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.