Home / 1,129,709.43-1,559,030.90-620,444.61

Finding the Fourth Proportional to 1,129,709.43, 1,559,030.90 and 620,444.61

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Solution

The fourth proportional to 1,129,709.43, 1,559,030.90 and 620,444.61 is: 856,231.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,709.43 : 1,559,030.90 = 620,444.61 : x
  2. Step 2: Convert to fraction form
    1,129,709.43/1,559,030.90 = 620,444.61/x
  3. Step 3: Cross multiply
    1,129,709.43x = 1,559,030.90 × 620,444.61
  4. Step 4: Simplify right side
    1,129,709.43x = 967,292,315,626.23
  5. Step 5: Solve for x
    x = 967,292,315,626.23/1,129,709.43
  6. Step 6: Final answer
    x = 856,231.07

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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.