Home / 1,361,200.80-1,878,246.78-788,130.27

Finding the Fourth Proportional to 1,361,200.80, 1,878,246.78 and 788,130.27

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Solution

The fourth proportional to 1,361,200.80, 1,878,246.78 and 788,130.27 is: 1,087,498.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,361,200.80 : 1,878,246.78 = 788,130.27 : x
  2. Step 2: Convert to fraction form
    1,361,200.80/1,878,246.78 = 788,130.27/x
  3. Step 3: Cross multiply
    1,361,200.80x = 1,878,246.78 × 788,130.27
  4. Step 4: Simplify right side
    1,361,200.80x = 1,480,303,141,848.03
  5. Step 5: Solve for x
    x = 1,480,303,141,848.03/1,361,200.80
  6. Step 6: Final answer
    x = 1,087,498.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.