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Finding the Fourth Proportional to 1,180,865.30, 1,768,673.55 and 970,913.30

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Solution

The fourth proportional to 1,180,865.30, 1,768,673.55 and 970,913.30 is: 1,454,212.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,180,865.30 : 1,768,673.55 = 970,913.30 : x
  2. Step 2: Convert to fraction form
    1,180,865.30/1,768,673.55 = 970,913.30/x
  3. Step 3: Cross multiply
    1,180,865.30x = 1,768,673.55 × 970,913.30
  4. Step 4: Simplify right side
    1,180,865.30x = 1,717,228,673,053.22
  5. Step 5: Solve for x
    x = 1,717,228,673,053.22/1,180,865.30
  6. Step 6: Final answer
    x = 1,454,212.16

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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.