Home / 1,980,203.40-2,968,336.80-913,384.80

Finding the Fourth Proportional to 1,980,203.40, 2,968,336.80 and 913,384.80

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Solution

The fourth proportional to 1,980,203.40, 2,968,336.80 and 913,384.80 is: 1,369,169.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,980,203.40 : 2,968,336.80 = 913,384.80 : x
  2. Step 2: Convert to fraction form
    1,980,203.40/2,968,336.80 = 913,384.80/x
  3. Step 3: Cross multiply
    1,980,203.40x = 2,968,336.80 × 913,384.80
  4. Step 4: Simplify right side
    1,980,203.40x = 2,711,233,714,400.64
  5. Step 5: Solve for x
    x = 2,711,233,714,400.64/1,980,203.40
  6. Step 6: Final answer
    x = 1,369,169.31

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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.