Home / 1,209,986.70-1,814,980.05-368,429.10

Finding the Fourth Proportional to 1,209,986.70, 1,814,980.05 and 368,429.10

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Solution

The fourth proportional to 1,209,986.70, 1,814,980.05 and 368,429.10 is: 552,643.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,986.70 : 1,814,980.05 = 368,429.10 : x
  2. Step 2: Convert to fraction form
    1,209,986.70/1,814,980.05 = 368,429.10/x
  3. Step 3: Cross multiply
    1,209,986.70x = 1,814,980.05 × 368,429.10
  4. Step 4: Simplify right side
    1,209,986.70x = 668,691,466,339.46
  5. Step 5: Solve for x
    x = 668,691,466,339.46/1,209,986.70
  6. Step 6: Final answer
    x = 552,643.65

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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.