Home / 947,775.34-1,421,736.45-316,691.38

Finding the Fourth Proportional to 947,775.34, 1,421,736.45 and 316,691.38

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Solution

The fourth proportional to 947,775.34, 1,421,736.45 and 316,691.38 is: 475,061.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,775.34 : 1,421,736.45 = 316,691.38 : x
  2. Step 2: Convert to fraction form
    947,775.34/1,421,736.45 = 316,691.38/x
  3. Step 3: Cross multiply
    947,775.34x = 1,421,736.45 × 316,691.38
  4. Step 4: Simplify right side
    947,775.34x = 450,251,678,346.80
  5. Step 5: Solve for x
    x = 450,251,678,346.80/947,775.34
  6. Step 6: Final answer
    x = 475,061.61

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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.