Home / 947,106.90-1,420,672.66-316,020.71

Finding the Fourth Proportional to 947,106.90, 1,420,672.66 and 316,020.71

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Solution

The fourth proportional to 947,106.90, 1,420,672.66 and 316,020.71 is: 474,035.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,106.90 : 1,420,672.66 = 316,020.71 : x
  2. Step 2: Convert to fraction form
    947,106.90/1,420,672.66 = 316,020.71/x
  3. Step 3: Cross multiply
    947,106.90x = 1,420,672.66 × 316,020.71
  4. Step 4: Simplify right side
    947,106.90x = 448,961,980,013.45
  5. Step 5: Solve for x
    x = 448,961,980,013.45/947,106.90
  6. Step 6: Final answer
    x = 474,035.17

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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.