Home / 740,994.09-1,022,007.60-637,803.90

Finding the Fourth Proportional to 740,994.09, 1,022,007.60 and 637,803.90

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Solution

The fourth proportional to 740,994.09, 1,022,007.60 and 637,803.90 is: 879,683.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,994.09 : 1,022,007.60 = 637,803.90 : x
  2. Step 2: Convert to fraction form
    740,994.09/1,022,007.60 = 637,803.90/x
  3. Step 3: Cross multiply
    740,994.09x = 1,022,007.60 × 637,803.90
  4. Step 4: Simplify right side
    740,994.09x = 651,840,433,109.64
  5. Step 5: Solve for x
    x = 651,840,433,109.64/740,994.09
  6. Step 6: Final answer
    x = 879,683.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.