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Finding the Fourth Proportional to 666,864.74, 920,273.26 and 360,941.07

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Solution

The fourth proportional to 666,864.74, 920,273.26 and 360,941.07 is: 498,098.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,864.74 : 920,273.26 = 360,941.07 : x
  2. Step 2: Convert to fraction form
    666,864.74/920,273.26 = 360,941.07/x
  3. Step 3: Cross multiply
    666,864.74x = 920,273.26 × 360,941.07
  4. Step 4: Simplify right side
    666,864.74x = 332,164,415,156.79
  5. Step 5: Solve for x
    x = 332,164,415,156.79/666,864.74
  6. Step 6: Final answer
    x = 498,098.63

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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.