Home / 715,784.60-1,073,510.82-316,207.40

Finding the Fourth Proportional to 715,784.60, 1,073,510.82 and 316,207.40

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Solution

The fourth proportional to 715,784.60, 1,073,510.82 and 316,207.40 is: 474,237.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,784.60 : 1,073,510.82 = 316,207.40 : x
  2. Step 2: Convert to fraction form
    715,784.60/1,073,510.82 = 316,207.40/x
  3. Step 3: Cross multiply
    715,784.60x = 1,073,510.82 × 316,207.40
  4. Step 4: Simplify right side
    715,784.60x = 339,452,059,896.51
  5. Step 5: Solve for x
    x = 339,452,059,896.51/715,784.60
  6. Step 6: Final answer
    x = 474,237.73

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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.