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Finding the Fourth Proportional to 666,880.24, 920,294.78 and 365,074.24

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Solution

The fourth proportional to 666,880.24, 920,294.78 and 365,074.24 is: 503,802.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,880.24 : 920,294.78 = 365,074.24 : x
  2. Step 2: Convert to fraction form
    666,880.24/920,294.78 = 365,074.24/x
  3. Step 3: Cross multiply
    666,880.24x = 920,294.78 × 365,074.24
  4. Step 4: Simplify right side
    666,880.24x = 335,975,917,384.47
  5. Step 5: Solve for x
    x = 335,975,917,384.47/666,880.24
  6. Step 6: Final answer
    x = 503,802.48

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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.