Home / 1,091,818.40-1,636,172.40-805,272.80

Finding the Fourth Proportional to 1,091,818.40, 1,636,172.40 and 805,272.80

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Solution

The fourth proportional to 1,091,818.40, 1,636,172.40 and 805,272.80 is: 1,206,762.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,818.40 : 1,636,172.40 = 805,272.80 : x
  2. Step 2: Convert to fraction form
    1,091,818.40/1,636,172.40 = 805,272.80/x
  3. Step 3: Cross multiply
    1,091,818.40x = 1,636,172.40 × 805,272.80
  4. Step 4: Simplify right side
    1,091,818.40x = 1,317,565,129,830.72
  5. Step 5: Solve for x
    x = 1,317,565,129,830.72/1,091,818.40
  6. Step 6: Final answer
    x = 1,206,762.16

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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.