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Finding the Fourth Proportional to 786,122.13, 1,084,887 and 442,066.33

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Solution

The fourth proportional to 786,122.13, 1,084,887 and 442,066.33 is: 610,073.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,122.13 : 1,084,887 = 442,066.33 : x
  2. Step 2: Convert to fraction form
    786,122.13/1,084,887 = 442,066.33/x
  3. Step 3: Cross multiply
    786,122.13x = 1,084,887 × 442,066.33
  4. Step 4: Simplify right side
    786,122.13x = 479,592,015,910.82
  5. Step 5: Solve for x
    x = 479,592,015,910.82/786,122.13
  6. Step 6: Final answer
    x = 610,073.16

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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.