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Finding the Fourth Proportional to 672,213, 927,673.38 and 370,426.44

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Solution

The fourth proportional to 672,213, 927,673.38 and 370,426.44 is: 511,199.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,213 : 927,673.38 = 370,426.44 : x
  2. Step 2: Convert to fraction form
    672,213/927,673.38 = 370,426.44/x
  3. Step 3: Cross multiply
    672,213x = 927,673.38 × 370,426.44
  4. Step 4: Simplify right side
    672,213x = 343,634,747,636.17
  5. Step 5: Solve for x
    x = 343,634,747,636.17/672,213
  6. Step 6: Final answer
    x = 511,199.20

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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.