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Finding the Fourth Proportional to 566,889.49, 782,307.37 and 312,240.67

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Solution

The fourth proportional to 566,889.49, 782,307.37 and 312,240.67 is: 430,892.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,889.49 : 782,307.37 = 312,240.67 : x
  2. Step 2: Convert to fraction form
    566,889.49/782,307.37 = 312,240.67/x
  3. Step 3: Cross multiply
    566,889.49x = 782,307.37 × 312,240.67
  4. Step 4: Simplify right side
    566,889.49x = 244,268,178,433.40
  5. Step 5: Solve for x
    x = 244,268,178,433.40/566,889.49
  6. Step 6: Final answer
    x = 430,892.06

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Double scale
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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.