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Finding the Fourth Proportional to 870,092.09, 1,200,709.01 and 482,885.03

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Solution

The fourth proportional to 870,092.09, 1,200,709.01 and 482,885.03 is: 666,371.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,092.09 : 1,200,709.01 = 482,885.03 : x
  2. Step 2: Convert to fraction form
    870,092.09/1,200,709.01 = 482,885.03/x
  3. Step 3: Cross multiply
    870,092.09x = 1,200,709.01 × 482,885.03
  4. Step 4: Simplify right side
    870,092.09x = 579,804,397,897.15
  5. Step 5: Solve for x
    x = 579,804,397,897.15/870,092.09
  6. Step 6: Final answer
    x = 666,371.30

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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.