Home / 476,534.79-657,619.80-258,743.79

Finding the Fourth Proportional to 476,534.79, 657,619.80 and 258,743.79

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Solution

The fourth proportional to 476,534.79, 657,619.80 and 258,743.79 is: 357,067.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,534.79 : 657,619.80 = 258,743.79 : x
  2. Step 2: Convert to fraction form
    476,534.79/657,619.80 = 258,743.79/x
  3. Step 3: Cross multiply
    476,534.79x = 657,619.80 × 258,743.79
  4. Step 4: Simplify right side
    476,534.79x = 170,155,039,431.04
  5. Step 5: Solve for x
    x = 170,155,039,431.04/476,534.79
  6. Step 6: Final answer
    x = 357,067.40

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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.