Home / 1,129,559.52-1,558,408.23-645,782.16

Finding the Fourth Proportional to 1,129,559.52, 1,558,408.23 and 645,782.16

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Solution

The fourth proportional to 1,129,559.52, 1,558,408.23 and 645,782.16 is: 890,959.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,559.52 : 1,558,408.23 = 645,782.16 : x
  2. Step 2: Convert to fraction form
    1,129,559.52/1,558,408.23 = 645,782.16/x
  3. Step 3: Cross multiply
    1,129,559.52x = 1,558,408.23 × 645,782.16
  4. Step 4: Simplify right side
    1,129,559.52x = 1,006,392,232,931.18
  5. Step 5: Solve for x
    x = 1,006,392,232,931.18/1,129,559.52
  6. Step 6: Final answer
    x = 890,959.90

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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.