Home / 1,173,347.12-1,619,219.69-636,803.12

Finding the Fourth Proportional to 1,173,347.12, 1,619,219.69 and 636,803.12

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Solution

The fourth proportional to 1,173,347.12, 1,619,219.69 and 636,803.12 is: 878,788.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,173,347.12 : 1,619,219.69 = 636,803.12 : x
  2. Step 2: Convert to fraction form
    1,173,347.12/1,619,219.69 = 636,803.12/x
  3. Step 3: Cross multiply
    1,173,347.12x = 1,619,219.69 × 636,803.12
  4. Step 4: Simplify right side
    1,173,347.12x = 1,031,124,139,277.32
  5. Step 5: Solve for x
    x = 1,031,124,139,277.32/1,173,347.12
  6. Step 6: Final answer
    x = 878,788.66

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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.