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Finding the Fourth Proportional to 630,898.80, 870,653.52 and 344,430.96

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Solution

The fourth proportional to 630,898.80, 870,653.52 and 344,430.96 is: 475,321.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,898.80 : 870,653.52 = 344,430.96 : x
  2. Step 2: Convert to fraction form
    630,898.80/870,653.52 = 344,430.96/x
  3. Step 3: Cross multiply
    630,898.80x = 870,653.52 × 344,430.96
  4. Step 4: Simplify right side
    630,898.80x = 299,880,027,720.98
  5. Step 5: Solve for x
    x = 299,880,027,720.98/630,898.80
  6. Step 6: Final answer
    x = 475,321.92

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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.