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Finding the Fourth Proportional to 679,825.17, 938,165.00 and 369,730.67

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Solution

The fourth proportional to 679,825.17, 938,165.00 and 369,730.67 is: 510,231.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,825.17 : 938,165.00 = 369,730.67 : x
  2. Step 2: Convert to fraction form
    679,825.17/938,165.00 = 369,730.67/x
  3. Step 3: Cross multiply
    679,825.17x = 938,165.00 × 369,730.67
  4. Step 4: Simplify right side
    679,825.17x = 346,868,367,481.07
  5. Step 5: Solve for x
    x = 346,868,367,481.07/679,825.17
  6. Step 6: Final answer
    x = 510,231.72

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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.