Home / 790,637.76-1,091,080.74-428,061.84

Finding the Fourth Proportional to 790,637.76, 1,091,080.74 and 428,061.84

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Solution

The fourth proportional to 790,637.76, 1,091,080.74 and 428,061.84 is: 590,725.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,637.76 : 1,091,080.74 = 428,061.84 : x
  2. Step 2: Convert to fraction form
    790,637.76/1,091,080.74 = 428,061.84/x
  3. Step 3: Cross multiply
    790,637.76x = 1,091,080.74 × 428,061.84
  4. Step 4: Simplify right side
    790,637.76x = 467,050,029,152.96
  5. Step 5: Solve for x
    x = 467,050,029,152.96/790,637.76
  6. Step 6: Final answer
    x = 590,725.68

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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.