Home / 790,612.10-1,091,053.50-428,043.86

Finding the Fourth Proportional to 790,612.10, 1,091,053.50 and 428,043.86

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Solution

The fourth proportional to 790,612.10, 1,091,053.50 and 428,043.86 is: 590,705.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,612.10 : 1,091,053.50 = 428,043.86 : x
  2. Step 2: Convert to fraction form
    790,612.10/1,091,053.50 = 428,043.86/x
  3. Step 3: Cross multiply
    790,612.10x = 1,091,053.50 × 428,043.86
  4. Step 4: Simplify right side
    790,612.10x = 467,018,751,606.51
  5. Step 5: Solve for x
    x = 467,018,751,606.51/790,612.10
  6. Step 6: Final answer
    x = 590,705.29

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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.