Home / 1,590,487.70-2,385,953.15-511,032.78

Finding the Fourth Proportional to 1,590,487.70, 2,385,953.15 and 511,032.78

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Solution

The fourth proportional to 1,590,487.70, 2,385,953.15 and 511,032.78 is: 766,620.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,590,487.70 : 2,385,953.15 = 511,032.78 : x
  2. Step 2: Convert to fraction form
    1,590,487.70/2,385,953.15 = 511,032.78/x
  3. Step 3: Cross multiply
    1,590,487.70x = 2,385,953.15 × 511,032.78
  4. Step 4: Simplify right side
    1,590,487.70x = 1,219,300,268,639.09
  5. Step 5: Solve for x
    x = 1,219,300,268,639.09/1,590,487.70
  6. Step 6: Final answer
    x = 766,620.37

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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.