Home / 1,210,628.88-1,815,938.40-369,178.20

Finding the Fourth Proportional to 1,210,628.88, 1,815,938.40 and 369,178.20

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Solution

The fourth proportional to 1,210,628.88, 1,815,938.40 and 369,178.20 is: 553,765.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,628.88 : 1,815,938.40 = 369,178.20 : x
  2. Step 2: Convert to fraction form
    1,210,628.88/1,815,938.40 = 369,178.20/x
  3. Step 3: Cross multiply
    1,210,628.88x = 1,815,938.40 × 369,178.20
  4. Step 4: Simplify right side
    1,210,628.88x = 670,404,869,822.88
  5. Step 5: Solve for x
    x = 670,404,869,822.88/1,210,628.88
  6. Step 6: Final answer
    x = 553,765.80

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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.