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Finding the Fourth Proportional to 663,424.56, 914,802.38 and 448,190.91

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Solution

The fourth proportional to 663,424.56, 914,802.38 and 448,190.91 is: 618,014.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,424.56 : 914,802.38 = 448,190.91 : x
  2. Step 2: Convert to fraction form
    663,424.56/914,802.38 = 448,190.91/x
  3. Step 3: Cross multiply
    663,424.56x = 914,802.38 × 448,190.91
  4. Step 4: Simplify right side
    663,424.56x = 410,006,111,162.37
  5. Step 5: Solve for x
    x = 410,006,111,162.37/663,424.56
  6. Step 6: Final answer
    x = 618,014.67

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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.