Home / 771,314.51-1,157,718.08-372,236.21

Finding the Fourth Proportional to 771,314.51, 1,157,718.08 and 372,236.21

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Solution

The fourth proportional to 771,314.51, 1,157,718.08 and 372,236.21 is: 558,714.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,314.51 : 1,157,718.08 = 372,236.21 : x
  2. Step 2: Convert to fraction form
    771,314.51/1,157,718.08 = 372,236.21/x
  3. Step 3: Cross multiply
    771,314.51x = 1,157,718.08 × 372,236.21
  4. Step 4: Simplify right side
    771,314.51x = 430,944,590,347.68
  5. Step 5: Solve for x
    x = 430,944,590,347.68/771,314.51
  6. Step 6: Final answer
    x = 558,714.49

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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.