Home / 947,108.89-1,420,675.65-316,022.70

Finding the Fourth Proportional to 947,108.89, 1,420,675.65 and 316,022.70

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Solution

The fourth proportional to 947,108.89, 1,420,675.65 and 316,022.70 is: 474,038.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,108.89 : 1,420,675.65 = 316,022.70 : x
  2. Step 2: Convert to fraction form
    947,108.89/1,420,675.65 = 316,022.70/x
  3. Step 3: Cross multiply
    947,108.89x = 1,420,675.65 × 316,022.70
  4. Step 4: Simplify right side
    947,108.89x = 448,965,754,737.26
  5. Step 5: Solve for x
    x = 448,965,754,737.26/947,108.89
  6. Step 6: Final answer
    x = 474,038.16

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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.