Home / 670,225.72-1,005,666.54-315,275.56

Finding the Fourth Proportional to 670,225.72, 1,005,666.54 and 315,275.56

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Solution

The fourth proportional to 670,225.72, 1,005,666.54 and 315,275.56 is: 473,067.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,225.72 : 1,005,666.54 = 315,275.56 : x
  2. Step 2: Convert to fraction form
    670,225.72/1,005,666.54 = 315,275.56/x
  3. Step 3: Cross multiply
    670,225.72x = 1,005,666.54 × 315,275.56
  4. Step 4: Simplify right side
    670,225.72x = 317,062,081,571.76
  5. Step 5: Solve for x
    x = 317,062,081,571.76/670,225.72
  6. Step 6: Final answer
    x = 473,067.61

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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.