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Finding the Fourth Proportional to 988,679.04, 1,363,896 and 585,985.92

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Solution

The fourth proportional to 988,679.04, 1,363,896 and 585,985.92 is: 808,375.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,679.04 : 1,363,896 = 585,985.92 : x
  2. Step 2: Convert to fraction form
    988,679.04/1,363,896 = 585,985.92/x
  3. Step 3: Cross multiply
    988,679.04x = 1,363,896 × 585,985.92
  4. Step 4: Simplify right side
    988,679.04x = 799,223,852,344.32
  5. Step 5: Solve for x
    x = 799,223,852,344.32/988,679.04
  6. Step 6: Final answer
    x = 808,375.44

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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.