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Finding the Fourth Proportional to 666,776.61, 920,144.61 and 360,846.29

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Solution

The fourth proportional to 666,776.61, 920,144.61 and 360,846.29 is: 497,964.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,776.61 : 920,144.61 = 360,846.29 : x
  2. Step 2: Convert to fraction form
    666,776.61/920,144.61 = 360,846.29/x
  3. Step 3: Cross multiply
    666,776.61x = 920,144.61 × 360,846.29
  4. Step 4: Simplify right side
    666,776.61x = 332,030,771,082.36
  5. Step 5: Solve for x
    x = 332,030,771,082.36/666,776.61
  6. Step 6: Final answer
    x = 497,964.03

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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.