Home / 857,074.31-1,182,775.87-469,925.09

Finding the Fourth Proportional to 857,074.31, 1,182,775.87 and 469,925.09

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Solution

The fourth proportional to 857,074.31, 1,182,775.87 and 469,925.09 is: 648,503.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,074.31 : 1,182,775.87 = 469,925.09 : x
  2. Step 2: Convert to fraction form
    857,074.31/1,182,775.87 = 469,925.09/x
  3. Step 3: Cross multiply
    857,074.31x = 1,182,775.87 × 469,925.09
  4. Step 4: Simplify right side
    857,074.31x = 555,816,062,921.63
  5. Step 5: Solve for x
    x = 555,816,062,921.63/857,074.31
  6. Step 6: Final answer
    x = 648,503.93

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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.