Home / 1,287,898.03-1,931,059.36-614,185.39

Finding the Fourth Proportional to 1,287,898.03, 1,931,059.36 and 614,185.39

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Solution

The fourth proportional to 1,287,898.03, 1,931,059.36 and 614,185.39 is: 920,902.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,898.03 : 1,931,059.36 = 614,185.39 : x
  2. Step 2: Convert to fraction form
    1,287,898.03/1,931,059.36 = 614,185.39/x
  3. Step 3: Cross multiply
    1,287,898.03x = 1,931,059.36 × 614,185.39
  4. Step 4: Simplify right side
    1,287,898.03x = 1,186,028,446,134.75
  5. Step 5: Solve for x
    x = 1,186,028,446,134.75/1,287,898.03
  6. Step 6: Final answer
    x = 920,902.45

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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.