Home / 1,618,505.60-2,427,758.40-420,329.60

Finding the Fourth Proportional to 1,618,505.60, 2,427,758.40 and 420,329.60

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Solution

The fourth proportional to 1,618,505.60, 2,427,758.40 and 420,329.60 is: 630,494.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,618,505.60 : 2,427,758.40 = 420,329.60 : x
  2. Step 2: Convert to fraction form
    1,618,505.60/2,427,758.40 = 420,329.60/x
  3. Step 3: Cross multiply
    1,618,505.60x = 2,427,758.40 × 420,329.60
  4. Step 4: Simplify right side
    1,618,505.60x = 1,020,458,717,168.64
  5. Step 5: Solve for x
    x = 1,020,458,717,168.64/1,618,505.60
  6. Step 6: Final answer
    x = 630,494.40

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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.