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Finding the Fourth Proportional to 1,788,638.88, 2,468,270.16 and 983,822.88

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Solution

The fourth proportional to 1,788,638.88, 2,468,270.16 and 983,822.88 is: 1,357,647.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,788,638.88 : 2,468,270.16 = 983,822.88 : x
  2. Step 2: Convert to fraction form
    1,788,638.88/2,468,270.16 = 983,822.88/x
  3. Step 3: Cross multiply
    1,788,638.88x = 2,468,270.16 × 983,822.88
  4. Step 4: Simplify right side
    1,788,638.88x = 2,428,340,657,429.26
  5. Step 5: Solve for x
    x = 2,428,340,657,429.26/1,788,638.88
  6. Step 6: Final answer
    x = 1,357,647.25

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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.