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Finding the Fourth Proportional to 646,898.71, 892,726.32 and 356,520.75

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Solution

The fourth proportional to 646,898.71, 892,726.32 and 356,520.75 is: 492,002.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,898.71 : 892,726.32 = 356,520.75 : x
  2. Step 2: Convert to fraction form
    646,898.71/892,726.32 = 356,520.75/x
  3. Step 3: Cross multiply
    646,898.71x = 892,726.32 × 356,520.75
  4. Step 4: Simplify right side
    646,898.71x = 318,275,461,354.69
  5. Step 5: Solve for x
    x = 318,275,461,354.69/646,898.71
  6. Step 6: Final answer
    x = 492,002.00

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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.