Home / 1,186,188.91-1,779,825.55-645,635.41

Finding the Fourth Proportional to 1,186,188.91, 1,779,825.55 and 645,635.41

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Solution

The fourth proportional to 1,186,188.91, 1,779,825.55 and 645,635.41 is: 968,748.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,188.91 : 1,779,825.55 = 645,635.41 : x
  2. Step 2: Convert to fraction form
    1,186,188.91/1,779,825.55 = 645,635.41/x
  3. Step 3: Cross multiply
    1,186,188.91x = 1,779,825.55 × 645,635.41
  4. Step 4: Simplify right side
    1,186,188.91x = 1,149,118,398,702.73
  5. Step 5: Solve for x
    x = 1,149,118,398,702.73/1,186,188.91
  6. Step 6: Final answer
    x = 968,748.22

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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.