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Finding the Fourth Proportional to 672,159.34, 927,288.43 and 400,074.67

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Solution

The fourth proportional to 672,159.34, 927,288.43 and 400,074.67 is: 551,929.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,159.34 : 927,288.43 = 400,074.67 : x
  2. Step 2: Convert to fraction form
    672,159.34/927,288.43 = 400,074.67/x
  3. Step 3: Cross multiply
    672,159.34x = 927,288.43 × 400,074.67
  4. Step 4: Simplify right side
    672,159.34x = 370,984,612,627.07
  5. Step 5: Solve for x
    x = 370,984,612,627.07/672,159.34
  6. Step 6: Final answer
    x = 551,929.57

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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.