Home / 1,405,303.24-2,107,639.52-646,415.86

Finding the Fourth Proportional to 1,405,303.24, 2,107,639.52 and 646,415.86

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Solution

The fourth proportional to 1,405,303.24, 2,107,639.52 and 646,415.86 is: 969,478.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,303.24 : 2,107,639.52 = 646,415.86 : x
  2. Step 2: Convert to fraction form
    1,405,303.24/2,107,639.52 = 646,415.86/x
  3. Step 3: Cross multiply
    1,405,303.24x = 2,107,639.52 × 646,415.86
  4. Step 4: Simplify right side
    1,405,303.24x = 1,362,411,612,890.79
  5. Step 5: Solve for x
    x = 1,362,411,612,890.79/1,405,303.24
  6. Step 6: Final answer
    x = 969,478.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.