Home / 1,980,001.95-2,970,002.93-717,665.55

Finding the Fourth Proportional to 1,980,001.95, 2,970,002.93 and 717,665.55

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Solution

The fourth proportional to 1,980,001.95, 2,970,002.93 and 717,665.55 is: 1,076,498.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,980,001.95 : 2,970,002.93 = 717,665.55 : x
  2. Step 2: Convert to fraction form
    1,980,001.95/2,970,002.93 = 717,665.55/x
  3. Step 3: Cross multiply
    1,980,001.95x = 2,970,002.93 × 717,665.55
  4. Step 4: Simplify right side
    1,980,001.95x = 2,131,468,782,671.73
  5. Step 5: Solve for x
    x = 2,131,468,782,671.73/1,980,001.95
  6. Step 6: Final answer
    x = 1,076,498.33

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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.