Home / 776,627.80-1,164,980.10-403,379.80

Finding the Fourth Proportional to 776,627.80, 1,164,980.10 and 403,379.80

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Solution

The fourth proportional to 776,627.80, 1,164,980.10 and 403,379.80 is: 605,089.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,627.80 : 1,164,980.10 = 403,379.80 : x
  2. Step 2: Convert to fraction form
    776,627.80/1,164,980.10 = 403,379.80/x
  3. Step 3: Cross multiply
    776,627.80x = 1,164,980.10 × 403,379.80
  4. Step 4: Simplify right side
    776,627.80x = 469,929,439,741.98
  5. Step 5: Solve for x
    x = 469,929,439,741.98/776,627.80
  6. Step 6: Final answer
    x = 605,089.64

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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.