Home / 1,488,534.60-2,232,801.90-1,420,105.80

Finding the Fourth Proportional to 1,488,534.60, 2,232,801.90 and 1,420,105.80

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Solution

The fourth proportional to 1,488,534.60, 2,232,801.90 and 1,420,105.80 is: 2,130,158.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,488,534.60 : 2,232,801.90 = 1,420,105.80 : x
  2. Step 2: Convert to fraction form
    1,488,534.60/2,232,801.90 = 1,420,105.80/x
  3. Step 3: Cross multiply
    1,488,534.60x = 2,232,801.90 × 1,420,105.80
  4. Step 4: Simplify right side
    1,488,534.60x = 3,170,814,928,441.02
  5. Step 5: Solve for x
    x = 3,170,814,928,441.02/1,488,534.60
  6. Step 6: Final answer
    x = 2,130,158.70

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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.