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Finding the Fourth Proportional to 644,370.49, 888,497.58 and 411,483.74

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Solution

The fourth proportional to 644,370.49, 888,497.58 and 411,483.74 is: 567,379.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,370.49 : 888,497.58 = 411,483.74 : x
  2. Step 2: Convert to fraction form
    644,370.49/888,497.58 = 411,483.74/x
  3. Step 3: Cross multiply
    644,370.49x = 888,497.58 × 411,483.74
  4. Step 4: Simplify right side
    644,370.49x = 365,602,309,420.59
  5. Step 5: Solve for x
    x = 365,602,309,420.59/644,370.49
  6. Step 6: Final answer
    x = 567,379.04

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Double scale
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1.5x scale

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.