Home / 821,818.81-1,134,222.51-472,951.81

Finding the Fourth Proportional to 821,818.81, 1,134,222.51 and 472,951.81

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Solution

The fourth proportional to 821,818.81, 1,134,222.51 and 472,951.81 is: 652,738.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,818.81 : 1,134,222.51 = 472,951.81 : x
  2. Step 2: Convert to fraction form
    821,818.81/1,134,222.51 = 472,951.81/x
  3. Step 3: Cross multiply
    821,818.81x = 1,134,222.51 × 472,951.81
  4. Step 4: Simplify right side
    821,818.81x = 536,432,589,047.24
  5. Step 5: Solve for x
    x = 536,432,589,047.24/821,818.81
  6. Step 6: Final answer
    x = 652,738.27

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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.