Home / 476,900.12-715,347.30-121,913.56

Finding the Fourth Proportional to 476,900.12, 715,347.30 and 121,913.56

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Solution

The fourth proportional to 476,900.12, 715,347.30 and 121,913.56 is: 182,869.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,900.12 : 715,347.30 = 121,913.56 : x
  2. Step 2: Convert to fraction form
    476,900.12/715,347.30 = 121,913.56/x
  3. Step 3: Cross multiply
    476,900.12x = 715,347.30 × 121,913.56
  4. Step 4: Simplify right side
    476,900.12x = 87,210,535,979.39
  5. Step 5: Solve for x
    x = 87,210,535,979.39/476,900.12
  6. Step 6: Final answer
    x = 182,869.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.