Home / 1,380,851.25-2,071,350.69-434,295.78

Finding the Fourth Proportional to 1,380,851.25, 2,071,350.69 and 434,295.78

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Solution

The fourth proportional to 1,380,851.25, 2,071,350.69 and 434,295.78 is: 651,466.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,851.25 : 2,071,350.69 = 434,295.78 : x
  2. Step 2: Convert to fraction form
    1,380,851.25/2,071,350.69 = 434,295.78/x
  3. Step 3: Cross multiply
    1,380,851.25x = 2,071,350.69 × 434,295.78
  4. Step 4: Simplify right side
    1,380,851.25x = 899,578,863,567.09
  5. Step 5: Solve for x
    x = 899,578,863,567.09/1,380,851.25
  6. Step 6: Final answer
    x = 651,466.89

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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.