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Finding the Fourth Proportional to 655,911.30, 983,866.95 and 375,231.72

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Solution

The fourth proportional to 655,911.30, 983,866.95 and 375,231.72 is: 562,847.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,911.30 : 983,866.95 = 375,231.72 : x
  2. Step 2: Convert to fraction form
    655,911.30/983,866.95 = 375,231.72/x
  3. Step 3: Cross multiply
    655,911.30x = 983,866.95 × 375,231.72
  4. Step 4: Simplify right side
    655,911.30x = 369,178,087,899.65
  5. Step 5: Solve for x
    x = 369,178,087,899.65/655,911.30
  6. Step 6: Final answer
    x = 562,847.58

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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.