Home / 790,635.81-1,091,076.08-428,059.69

Finding the Fourth Proportional to 790,635.81, 1,091,076.08 and 428,059.69

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Solution

The fourth proportional to 790,635.81, 1,091,076.08 and 428,059.69 is: 590,721.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,635.81 : 1,091,076.08 = 428,059.69 : x
  2. Step 2: Convert to fraction form
    790,635.81/1,091,076.08 = 428,059.69/x
  3. Step 3: Cross multiply
    790,635.81x = 1,091,076.08 × 428,059.69
  4. Step 4: Simplify right side
    790,635.81x = 467,045,683,703.23
  5. Step 5: Solve for x
    x = 467,045,683,703.23/790,635.81
  6. Step 6: Final answer
    x = 590,721.64

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Double scale
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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.