Home / 1,988,823.20-2,983,235.08-709,378.94

Finding the Fourth Proportional to 1,988,823.20, 2,983,235.08 and 709,378.94

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Solution

The fourth proportional to 1,988,823.20, 2,983,235.08 and 709,378.94 is: 1,064,068.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988,823.20 : 2,983,235.08 = 709,378.94 : x
  2. Step 2: Convert to fraction form
    1,988,823.20/2,983,235.08 = 709,378.94/x
  3. Step 3: Cross multiply
    1,988,823.20x = 2,983,235.08 × 709,378.94
  4. Step 4: Simplify right side
    1,988,823.20x = 2,116,244,138,821.22
  5. Step 5: Solve for x
    x = 2,116,244,138,821.22/1,988,823.20
  6. Step 6: Final answer
    x = 1,064,068.51

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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.