Home / 1,717,720.80-2,571,332.40-1,339,807.20

Finding the Fourth Proportional to 1,717,720.80, 2,571,332.40 and 1,339,807.20

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Solution

The fourth proportional to 1,717,720.80, 2,571,332.40 and 1,339,807.20 is: 2,005,616.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,717,720.80 : 2,571,332.40 = 1,339,807.20 : x
  2. Step 2: Convert to fraction form
    1,717,720.80/2,571,332.40 = 1,339,807.20/x
  3. Step 3: Cross multiply
    1,717,720.80x = 2,571,332.40 × 1,339,807.20
  4. Step 4: Simplify right side
    1,717,720.80x = 3,445,089,663,113.28
  5. Step 5: Solve for x
    x = 3,445,089,663,113.28/1,717,720.80
  6. Step 6: Final answer
    x = 2,005,616.78

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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.