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Finding the Fourth Proportional to 640,802.98, 884,308.34 and 365,152.94

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Solution

The fourth proportional to 640,802.98, 884,308.34 and 365,152.94 is: 503,911.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,802.98 : 884,308.34 = 365,152.94 : x
  2. Step 2: Convert to fraction form
    640,802.98/884,308.34 = 365,152.94/x
  3. Step 3: Cross multiply
    640,802.98x = 884,308.34 × 365,152.94
  4. Step 4: Simplify right side
    640,802.98x = 322,907,792,945.27
  5. Step 5: Solve for x
    x = 322,907,792,945.27/640,802.98
  6. Step 6: Final answer
    x = 503,911.19

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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.