Home / 670,224.72-1,005,665.04-315,274.56

Finding the Fourth Proportional to 670,224.72, 1,005,665.04 and 315,274.56

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Solution

The fourth proportional to 670,224.72, 1,005,665.04 and 315,274.56 is: 473,066.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,224.72 : 1,005,665.04 = 315,274.56 : x
  2. Step 2: Convert to fraction form
    670,224.72/1,005,665.04 = 315,274.56/x
  3. Step 3: Cross multiply
    670,224.72x = 1,005,665.04 × 315,274.56
  4. Step 4: Simplify right side
    670,224.72x = 317,060,602,993.38
  5. Step 5: Solve for x
    x = 317,060,602,993.38/670,224.72
  6. Step 6: Final answer
    x = 473,066.11

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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.