Home / 820,422.54-1,132,176.53-476,290.40

Finding the Fourth Proportional to 820,422.54, 1,132,176.53 and 476,290.40

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Solution

The fourth proportional to 820,422.54, 1,132,176.53 and 476,290.40 is: 657,276.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,422.54 : 1,132,176.53 = 476,290.40 : x
  2. Step 2: Convert to fraction form
    820,422.54/1,132,176.53 = 476,290.40/x
  3. Step 3: Cross multiply
    820,422.54x = 1,132,176.53 × 476,290.40
  4. Step 4: Simplify right side
    820,422.54x = 539,244,804,301.98
  5. Step 5: Solve for x
    x = 539,244,804,301.98/820,422.54
  6. Step 6: Final answer
    x = 657,276.93

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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.