Home / 1,229,590.80-1,842,417.90-808,374.60

Finding the Fourth Proportional to 1,229,590.80, 1,842,417.90 and 808,374.60

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Solution

The fourth proportional to 1,229,590.80, 1,842,417.90 and 808,374.60 is: 1,211,267.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,590.80 : 1,842,417.90 = 808,374.60 : x
  2. Step 2: Convert to fraction form
    1,229,590.80/1,842,417.90 = 808,374.60/x
  3. Step 3: Cross multiply
    1,229,590.80x = 1,842,417.90 × 808,374.60
  4. Step 4: Simplify right side
    1,229,590.80x = 1,489,363,832,945.34
  5. Step 5: Solve for x
    x = 1,489,363,832,945.34/1,229,590.80
  6. Step 6: Final answer
    x = 1,211,267.87

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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.