Home / 829,005.90-1,243,508.85-818,508.30

Finding the Fourth Proportional to 829,005.90, 1,243,508.85 and 818,508.30

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Solution

The fourth proportional to 829,005.90, 1,243,508.85 and 818,508.30 is: 1,227,762.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,005.90 : 1,243,508.85 = 818,508.30 : x
  2. Step 2: Convert to fraction form
    829,005.90/1,243,508.85 = 818,508.30/x
  3. Step 3: Cross multiply
    829,005.90x = 1,243,508.85 × 818,508.30
  4. Step 4: Simplify right side
    829,005.90x = 1,017,822,314,848.46
  5. Step 5: Solve for x
    x = 1,017,822,314,848.46/829,005.90
  6. Step 6: Final answer
    x = 1,227,762.45

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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.