Home / 1,420,245.60-2,130,368.40-409,365.60

Finding the Fourth Proportional to 1,420,245.60, 2,130,368.40 and 409,365.60

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Solution

The fourth proportional to 1,420,245.60, 2,130,368.40 and 409,365.60 is: 614,048.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,245.60 : 2,130,368.40 = 409,365.60 : x
  2. Step 2: Convert to fraction form
    1,420,245.60/2,130,368.40 = 409,365.60/x
  3. Step 3: Cross multiply
    1,420,245.60x = 2,130,368.40 × 409,365.60
  4. Step 4: Simplify right side
    1,420,245.60x = 872,099,538,287.04
  5. Step 5: Solve for x
    x = 872,099,538,287.04/1,420,245.60
  6. Step 6: Final answer
    x = 614,048.40

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1.5x scale

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.