Home / 790,702.32-1,091,169.71-428,126.43

Finding the Fourth Proportional to 790,702.32, 1,091,169.71 and 428,126.43

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Solution

The fourth proportional to 790,702.32, 1,091,169.71 and 428,126.43 is: 590,814.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,702.32 : 1,091,169.71 = 428,126.43 : x
  2. Step 2: Convert to fraction form
    790,702.32/1,091,169.71 = 428,126.43/x
  3. Step 3: Cross multiply
    790,702.32x = 1,091,169.71 × 428,126.43
  4. Step 4: Simplify right side
    790,702.32x = 467,158,592,466.44
  5. Step 5: Solve for x
    x = 467,158,592,466.44/790,702.32
  6. Step 6: Final answer
    x = 590,814.75

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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.