Home / 451,397.20-677,268.60-444,312.40

Finding the Fourth Proportional to 451,397.20, 677,268.60 and 444,312.40

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Solution

The fourth proportional to 451,397.20, 677,268.60 and 444,312.40 is: 666,638.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,397.20 : 677,268.60 = 444,312.40 : x
  2. Step 2: Convert to fraction form
    451,397.20/677,268.60 = 444,312.40/x
  3. Step 3: Cross multiply
    451,397.20x = 677,268.60 × 444,312.40
  4. Step 4: Simplify right side
    451,397.20x = 300,918,837,110.64
  5. Step 5: Solve for x
    x = 300,918,837,110.64/451,397.20
  6. Step 6: Final answer
    x = 666,638.69

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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.