Home / 1,373,443.20-2,059,970.40-426,909.60

Finding the Fourth Proportional to 1,373,443.20, 2,059,970.40 and 426,909.60

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Solution

The fourth proportional to 1,373,443.20, 2,059,970.40 and 426,909.60 is: 640,303.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,373,443.20 : 2,059,970.40 = 426,909.60 : x
  2. Step 2: Convert to fraction form
    1,373,443.20/2,059,970.40 = 426,909.60/x
  3. Step 3: Cross multiply
    1,373,443.20x = 2,059,970.40 × 426,909.60
  4. Step 4: Simplify right side
    1,373,443.20x = 879,421,139,475.84
  5. Step 5: Solve for x
    x = 879,421,139,475.84/1,373,443.20
  6. Step 6: Final answer
    x = 640,303.97

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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.