Home / 987,531.84-1,362,248.22-803,967.90

Finding the Fourth Proportional to 987,531.84, 1,362,248.22 and 803,967.90

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Solution

The fourth proportional to 987,531.84, 1,362,248.22 and 803,967.90 is: 1,109,031.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,531.84 : 1,362,248.22 = 803,967.90 : x
  2. Step 2: Convert to fraction form
    987,531.84/1,362,248.22 = 803,967.90/x
  3. Step 3: Cross multiply
    987,531.84x = 1,362,248.22 × 803,967.90
  4. Step 4: Simplify right side
    987,531.84x = 1,095,203,840,712.14
  5. Step 5: Solve for x
    x = 1,095,203,840,712.14/987,531.84
  6. Step 6: Final answer
    x = 1,109,031.42

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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.