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Finding the Fourth Proportional to 890,727, 1,336,807.35 and 506,711.67

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Solution

The fourth proportional to 890,727, 1,336,807.35 and 506,711.67 is: 760,475.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,727 : 1,336,807.35 = 506,711.67 : x
  2. Step 2: Convert to fraction form
    890,727/1,336,807.35 = 506,711.67/x
  3. Step 3: Cross multiply
    890,727x = 1,336,807.35 × 506,711.67
  4. Step 4: Simplify right side
    890,727x = 677,375,884,786.78
  5. Step 5: Solve for x
    x = 677,375,884,786.78/890,727
  6. Step 6: Final answer
    x = 760,475.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.