Home / 718,835.38-1,078,068.56-213,276.76

Finding the Fourth Proportional to 718,835.38, 1,078,068.56 and 213,276.76

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Solution

The fourth proportional to 718,835.38, 1,078,068.56 and 213,276.76 is: 319,860.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,835.38 : 1,078,068.56 = 213,276.76 : x
  2. Step 2: Convert to fraction form
    718,835.38/1,078,068.56 = 213,276.76/x
  3. Step 3: Cross multiply
    718,835.38x = 1,078,068.56 × 213,276.76
  4. Step 4: Simplify right side
    718,835.38x = 229,926,969,534.67
  5. Step 5: Solve for x
    x = 229,926,969,534.67/718,835.38
  6. Step 6: Final answer
    x = 319,860.40

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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.