Home / 1,129,106.52-1,557,909.72-669,983.94

Finding the Fourth Proportional to 1,129,106.52, 1,557,909.72 and 669,983.94

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Solution

The fourth proportional to 1,129,106.52, 1,557,909.72 and 669,983.94 is: 924,425.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,106.52 : 1,557,909.72 = 669,983.94 : x
  2. Step 2: Convert to fraction form
    1,129,106.52/1,557,909.72 = 669,983.94/x
  3. Step 3: Cross multiply
    1,129,106.52x = 1,557,909.72 × 669,983.94
  4. Step 4: Simplify right side
    1,129,106.52x = 1,043,774,492,369.90
  5. Step 5: Solve for x
    x = 1,043,774,492,369.90/1,129,106.52
  6. Step 6: Final answer
    x = 924,425.18

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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.