Home / 1,224,440.87-1,689,718.41-665,631.64

Finding the Fourth Proportional to 1,224,440.87, 1,689,718.41 and 665,631.64

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Solution

The fourth proportional to 1,224,440.87, 1,689,718.41 and 665,631.64 is: 918,566.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224,440.87 : 1,689,718.41 = 665,631.64 : x
  2. Step 2: Convert to fraction form
    1,224,440.87/1,689,718.41 = 665,631.64/x
  3. Step 3: Cross multiply
    1,224,440.87x = 1,689,718.41 × 665,631.64
  4. Step 4: Simplify right side
    1,224,440.87x = 1,124,730,032,162.20
  5. Step 5: Solve for x
    x = 1,124,730,032,162.20/1,224,440.87
  6. Step 6: Final answer
    x = 918,566.23

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.