Home / 696,001.70-1,044,002.55-428,896.10

Finding the Fourth Proportional to 696,001.70, 1,044,002.55 and 428,896.10

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Solution

The fourth proportional to 696,001.70, 1,044,002.55 and 428,896.10 is: 643,344.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,001.70 : 1,044,002.55 = 428,896.10 : x
  2. Step 2: Convert to fraction form
    696,001.70/1,044,002.55 = 428,896.10/x
  3. Step 3: Cross multiply
    696,001.70x = 1,044,002.55 × 428,896.10
  4. Step 4: Simplify right side
    696,001.70x = 447,768,622,085.06
  5. Step 5: Solve for x
    x = 447,768,622,085.06/696,001.70
  6. Step 6: Final answer
    x = 643,344.15

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Double scale
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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.