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Finding the Fourth Proportional to 1,308,888.84, 1,961,329.20 and 880,837.80

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Solution

The fourth proportional to 1,308,888.84, 1,961,329.20 and 880,837.80 is: 1,319,908.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308,888.84 : 1,961,329.20 = 880,837.80 : x
  2. Step 2: Convert to fraction form
    1,308,888.84/1,961,329.20 = 880,837.80/x
  3. Step 3: Cross multiply
    1,308,888.84x = 1,961,329.20 × 880,837.80
  4. Step 4: Simplify right side
    1,308,888.84x = 1,727,612,897,603.76
  5. Step 5: Solve for x
    x = 1,727,612,897,603.76/1,308,888.84
  6. Step 6: Final answer
    x = 1,319,908.04

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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.