Home / 696,006.70-1,044,010.05-428,901.10

Finding the Fourth Proportional to 696,006.70, 1,044,010.05 and 428,901.10

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Solution

The fourth proportional to 696,006.70, 1,044,010.05 and 428,901.10 is: 643,351.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,006.70 : 1,044,010.05 = 428,901.10 : x
  2. Step 2: Convert to fraction form
    696,006.70/1,044,010.05 = 428,901.10/x
  3. Step 3: Cross multiply
    696,006.70x = 1,044,010.05 × 428,901.10
  4. Step 4: Simplify right side
    696,006.70x = 447,777,058,856.06
  5. Step 5: Solve for x
    x = 447,777,058,856.06/696,006.70
  6. Step 6: Final answer
    x = 643,351.65

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Double scale
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Similar ratio
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1.5x scale

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.