Home / 947,109.15-1,420,676.03-316,022.96

Finding the Fourth Proportional to 947,109.15, 1,420,676.03 and 316,022.96

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Solution

The fourth proportional to 947,109.15, 1,420,676.03 and 316,022.96 is: 474,038.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,109.15 : 1,420,676.03 = 316,022.96 : x
  2. Step 2: Convert to fraction form
    947,109.15/1,420,676.03 = 316,022.96/x
  3. Step 3: Cross multiply
    947,109.15x = 1,420,676.03 × 316,022.96
  4. Step 4: Simplify right side
    947,109.15x = 448,966,248,543.40
  5. Step 5: Solve for x
    x = 448,966,248,543.40/947,109.15
  6. Step 6: Final answer
    x = 474,038.55

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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.