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Finding the Fourth Proportional to 563,019.58, 777,022.91 and 321,338.67

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Solution

The fourth proportional to 563,019.58, 777,022.91 and 321,338.67 is: 443,479.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,019.58 : 777,022.91 = 321,338.67 : x
  2. Step 2: Convert to fraction form
    563,019.58/777,022.91 = 321,338.67/x
  3. Step 3: Cross multiply
    563,019.58x = 777,022.91 × 321,338.67
  4. Step 4: Simplify right side
    563,019.58x = 249,687,508,458.93
  5. Step 5: Solve for x
    x = 249,687,508,458.93/563,019.58
  6. Step 6: Final answer
    x = 443,479.26

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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.