Home / 1,079,841.70-1,490,347.12-666,619.12

Finding the Fourth Proportional to 1,079,841.70, 1,490,347.12 and 666,619.12

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Solution

The fourth proportional to 1,079,841.70, 1,490,347.12 and 666,619.12 is: 920,036.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,841.70 : 1,490,347.12 = 666,619.12 : x
  2. Step 2: Convert to fraction form
    1,079,841.70/1,490,347.12 = 666,619.12/x
  3. Step 3: Cross multiply
    1,079,841.70x = 1,490,347.12 × 666,619.12
  4. Step 4: Simplify right side
    1,079,841.70x = 993,493,885,628.94
  5. Step 5: Solve for x
    x = 993,493,885,628.94/1,079,841.70
  6. Step 6: Final answer
    x = 920,036.60

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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.