Home / 1,129,726.98-1,559,059.15-620,429.36

Finding the Fourth Proportional to 1,129,726.98, 1,559,059.15 and 620,429.36

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Solution

The fourth proportional to 1,129,726.98, 1,559,059.15 and 620,429.36 is: 856,212.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,726.98 : 1,559,059.15 = 620,429.36 : x
  2. Step 2: Convert to fraction form
    1,129,726.98/1,559,059.15 = 620,429.36/x
  3. Step 3: Cross multiply
    1,129,726.98x = 1,559,059.15 × 620,429.36
  4. Step 4: Simplify right side
    1,129,726.98x = 967,286,068,290.07
  5. Step 5: Solve for x
    x = 967,286,068,290.07/1,129,726.98
  6. Step 6: Final answer
    x = 856,212.24

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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.