Home / 1,139,807.08-1,709,140.38-381,387.88

Finding the Fourth Proportional to 1,139,807.08, 1,709,140.38 and 381,387.88

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Solution

The fourth proportional to 1,139,807.08, 1,709,140.38 and 381,387.88 is: 571,891.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,807.08 : 1,709,140.38 = 381,387.88 : x
  2. Step 2: Convert to fraction form
    1,139,807.08/1,709,140.38 = 381,387.88/x
  3. Step 3: Cross multiply
    1,139,807.08x = 1,709,140.38 × 381,387.88
  4. Step 4: Simplify right side
    1,139,807.08x = 651,845,426,150.59
  5. Step 5: Solve for x
    x = 651,845,426,150.59/1,139,807.08
  6. Step 6: Final answer
    x = 571,891.01

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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.