Home / 790,787.04-1,091,291.38-428,210.90

Finding the Fourth Proportional to 790,787.04, 1,091,291.38 and 428,210.90

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Solution

The fourth proportional to 790,787.04, 1,091,291.38 and 428,210.90 is: 590,933.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,787.04 : 1,091,291.38 = 428,210.90 : x
  2. Step 2: Convert to fraction form
    790,787.04/1,091,291.38 = 428,210.90/x
  3. Step 3: Cross multiply
    790,787.04x = 1,091,291.38 × 428,210.90
  4. Step 4: Simplify right side
    790,787.04x = 467,302,863,992.04
  5. Step 5: Solve for x
    x = 467,302,863,992.04/790,787.04
  6. Step 6: Final answer
    x = 590,933.89

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1.5x scale

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.