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Finding the Fourth Proportional to 674,920, 931,409.04 and 373,133.44

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Solution

The fourth proportional to 674,920, 931,409.04 and 373,133.44 is: 514,934.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,920 : 931,409.04 = 373,133.44 : x
  2. Step 2: Convert to fraction form
    674,920/931,409.04 = 373,133.44/x
  3. Step 3: Cross multiply
    674,920x = 931,409.04 × 373,133.44
  4. Step 4: Simplify right side
    674,920x = 347,539,859,142.30
  5. Step 5: Solve for x
    x = 347,539,859,142.30/674,920
  6. Step 6: Final answer
    x = 514,934.89

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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.