Home / 1,247,170.80-1,721,053.80-788,532.24

Finding the Fourth Proportional to 1,247,170.80, 1,721,053.80 and 788,532.24

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Solution

The fourth proportional to 1,247,170.80, 1,721,053.80 and 788,532.24 is: 1,088,148.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,170.80 : 1,721,053.80 = 788,532.24 : x
  2. Step 2: Convert to fraction form
    1,247,170.80/1,721,053.80 = 788,532.24/x
  3. Step 3: Cross multiply
    1,247,170.80x = 1,721,053.80 × 788,532.24
  4. Step 4: Simplify right side
    1,247,170.80x = 1,357,106,408,074.51
  5. Step 5: Solve for x
    x = 1,357,106,408,074.51/1,247,170.80
  6. Step 6: Final answer
    x = 1,088,148.00

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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.