Home / 1,919,886.81-2,879,995.59-499,945.47

Finding the Fourth Proportional to 1,919,886.81, 2,879,995.59 and 499,945.47

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Solution

The fourth proportional to 1,919,886.81, 2,879,995.59 and 499,945.47 is: 749,961.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,919,886.81 : 2,879,995.59 = 499,945.47 : x
  2. Step 2: Convert to fraction form
    1,919,886.81/2,879,995.59 = 499,945.47/x
  3. Step 3: Cross multiply
    1,919,886.81x = 2,879,995.59 × 499,945.47
  4. Step 4: Simplify right side
    1,919,886.81x = 1,439,840,748,840.48
  5. Step 5: Solve for x
    x = 1,439,840,748,840.48/1,919,886.81
  6. Step 6: Final answer
    x = 749,961.27

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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.