Home / 1,217,421.36-1,680,134.40-701,334.72

Finding the Fourth Proportional to 1,217,421.36, 1,680,134.40 and 701,334.72

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Solution

The fourth proportional to 1,217,421.36, 1,680,134.40 and 701,334.72 is: 967,895.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,421.36 : 1,680,134.40 = 701,334.72 : x
  2. Step 2: Convert to fraction form
    1,217,421.36/1,680,134.40 = 701,334.72/x
  3. Step 3: Cross multiply
    1,217,421.36x = 1,680,134.40 × 701,334.72
  4. Step 4: Simplify right side
    1,217,421.36x = 1,178,336,588,986.37
  5. Step 5: Solve for x
    x = 1,178,336,588,986.37/1,217,421.36
  6. Step 6: Final answer
    x = 967,895.44

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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.