Home / 1,187,090.19-1,780,619.79-288,529.35

Finding the Fourth Proportional to 1,187,090.19, 1,780,619.79 and 288,529.35

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Solution

The fourth proportional to 1,187,090.19, 1,780,619.79 and 288,529.35 is: 432,790.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,090.19 : 1,780,619.79 = 288,529.35 : x
  2. Step 2: Convert to fraction form
    1,187,090.19/1,780,619.79 = 288,529.35/x
  3. Step 3: Cross multiply
    1,187,090.19x = 1,780,619.79 × 288,529.35
  4. Step 4: Simplify right side
    1,187,090.19x = 513,761,070,605.84
  5. Step 5: Solve for x
    x = 513,761,070,605.84/1,187,090.19
  6. Step 6: Final answer
    x = 432,790.26

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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.