Home / 790,706.96-1,091,177.60-428,135.16

Finding the Fourth Proportional to 790,706.96, 1,091,177.60 and 428,135.16

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Solution

The fourth proportional to 790,706.96, 1,091,177.60 and 428,135.16 is: 590,827.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,706.96 : 1,091,177.60 = 428,135.16 : x
  2. Step 2: Convert to fraction form
    790,706.96/1,091,177.60 = 428,135.16/x
  3. Step 3: Cross multiply
    790,706.96x = 1,091,177.60 × 428,135.16
  4. Step 4: Simplify right side
    790,706.96x = 467,171,496,364.42
  5. Step 5: Solve for x
    x = 467,171,496,364.42/790,706.96
  6. Step 6: Final answer
    x = 590,827.60

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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.