Home / 1,218,349-1,681,088.34-788,569.48

Finding the Fourth Proportional to 1,218,349, 1,681,088.34 and 788,569.48

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Solution

The fourth proportional to 1,218,349, 1,681,088.34 and 788,569.48 is: 1,088,074.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,349 : 1,681,088.34 = 788,569.48 : x
  2. Step 2: Convert to fraction form
    1,218,349/1,681,088.34 = 788,569.48/x
  3. Step 3: Cross multiply
    1,218,349x = 1,681,088.34 × 788,569.48
  4. Step 4: Simplify right side
    1,218,349x = 1,325,654,958,107.86
  5. Step 5: Solve for x
    x = 1,325,654,958,107.86/1,218,349
  6. Step 6: Final answer
    x = 1,088,074.89

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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.