Home / 1,431,256.47-2,146,965.15-458,705.39

Finding the Fourth Proportional to 1,431,256.47, 2,146,965.15 and 458,705.39

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Solution

The fourth proportional to 1,431,256.47, 2,146,965.15 and 458,705.39 is: 688,083.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,256.47 : 2,146,965.15 = 458,705.39 : x
  2. Step 2: Convert to fraction form
    1,431,256.47/2,146,965.15 = 458,705.39/x
  3. Step 3: Cross multiply
    1,431,256.47x = 2,146,965.15 × 458,705.39
  4. Step 4: Simplify right side
    1,431,256.47x = 984,824,477,432.48
  5. Step 5: Solve for x
    x = 984,824,477,432.48/1,431,256.47
  6. Step 6: Final answer
    x = 688,083.86

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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.