Home / 1,116,712.40-1,675,068.60-668,814.80

Finding the Fourth Proportional to 1,116,712.40, 1,675,068.60 and 668,814.80

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Solution

The fourth proportional to 1,116,712.40, 1,675,068.60 and 668,814.80 is: 1,003,222.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,116,712.40 : 1,675,068.60 = 668,814.80 : x
  2. Step 2: Convert to fraction form
    1,116,712.40/1,675,068.60 = 668,814.80/x
  3. Step 3: Cross multiply
    1,116,712.40x = 1,675,068.60 × 668,814.80
  4. Step 4: Simplify right side
    1,116,712.40x = 1,120,310,670,695.28
  5. Step 5: Solve for x
    x = 1,120,310,670,695.28/1,116,712.40
  6. Step 6: Final answer
    x = 1,003,222.20

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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.