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Finding the Fourth Proportional to 673,141.66, 928,870.95 and 371,316.22

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Solution

The fourth proportional to 673,141.66, 928,870.95 and 371,316.22 is: 512,380.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,141.66 : 928,870.95 = 371,316.22 : x
  2. Step 2: Convert to fraction form
    673,141.66/928,870.95 = 371,316.22/x
  3. Step 3: Cross multiply
    673,141.66x = 928,870.95 × 371,316.22
  4. Step 4: Simplify right side
    673,141.66x = 344,904,850,021.81
  5. Step 5: Solve for x
    x = 344,904,850,021.81/673,141.66
  6. Step 6: Final answer
    x = 512,380.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.