Home / 757,431-1,045,276.65-417,921.12

Finding the Fourth Proportional to 757,431, 1,045,276.65 and 417,921.12

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Solution

The fourth proportional to 757,431, 1,045,276.65 and 417,921.12 is: 576,743.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,431 : 1,045,276.65 = 417,921.12 : x
  2. Step 2: Convert to fraction form
    757,431/1,045,276.65 = 417,921.12/x
  3. Step 3: Cross multiply
    757,431x = 1,045,276.65 × 417,921.12
  4. Step 4: Simplify right side
    757,431x = 436,843,188,277.85
  5. Step 5: Solve for x
    x = 436,843,188,277.85/757,431
  6. Step 6: Final answer
    x = 576,743.21

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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.