Home / 1,319,774.16-1,979,505.68-1,039,371.60

Finding the Fourth Proportional to 1,319,774.16, 1,979,505.68 and 1,039,371.60

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Solution

The fourth proportional to 1,319,774.16, 1,979,505.68 and 1,039,371.60 is: 1,558,934.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,774.16 : 1,979,505.68 = 1,039,371.60 : x
  2. Step 2: Convert to fraction form
    1,319,774.16/1,979,505.68 = 1,039,371.60/x
  3. Step 3: Cross multiply
    1,319,774.16x = 1,979,505.68 × 1,039,371.60
  4. Step 4: Simplify right side
    1,319,774.16x = 2,057,441,985,830.69
  5. Step 5: Solve for x
    x = 2,057,441,985,830.69/1,319,774.16
  6. Step 6: Final answer
    x = 1,558,934.89

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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.