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Finding the Fourth Proportional to 532,607.35, 734,986.78 and 290,890.88

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Solution

The fourth proportional to 532,607.35, 734,986.78 and 290,890.88 is: 401,423.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,607.35 : 734,986.78 = 290,890.88 : x
  2. Step 2: Convert to fraction form
    532,607.35/734,986.78 = 290,890.88/x
  3. Step 3: Cross multiply
    532,607.35x = 734,986.78 × 290,890.88
  4. Step 4: Simplify right side
    532,607.35x = 213,800,949,576.61
  5. Step 5: Solve for x
    x = 213,800,949,576.61/532,607.35
  6. Step 6: Final answer
    x = 401,423.21

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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.