Home / 1,220,466.78-1,830,700.26-472,512.78

Finding the Fourth Proportional to 1,220,466.78, 1,830,700.26 and 472,512.78

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Solution

The fourth proportional to 1,220,466.78, 1,830,700.26 and 472,512.78 is: 708,769.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,466.78 : 1,830,700.26 = 472,512.78 : x
  2. Step 2: Convert to fraction form
    1,220,466.78/1,830,700.26 = 472,512.78/x
  3. Step 3: Cross multiply
    1,220,466.78x = 1,830,700.26 × 472,512.78
  4. Step 4: Simplify right side
    1,220,466.78x = 865,029,269,199.32
  5. Step 5: Solve for x
    x = 865,029,269,199.32/1,220,466.78
  6. Step 6: Final answer
    x = 708,769.20

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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.