Home / 931,709.80-1,397,564.70-828,490.60

Finding the Fourth Proportional to 931,709.80, 1,397,564.70 and 828,490.60

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Solution

The fourth proportional to 931,709.80, 1,397,564.70 and 828,490.60 is: 1,242,735.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,709.80 : 1,397,564.70 = 828,490.60 : x
  2. Step 2: Convert to fraction form
    931,709.80/1,397,564.70 = 828,490.60/x
  3. Step 3: Cross multiply
    931,709.80x = 1,397,564.70 × 828,490.60
  4. Step 4: Simplify right side
    931,709.80x = 1,157,869,216,841.82
  5. Step 5: Solve for x
    x = 1,157,869,216,841.82/931,709.80
  6. Step 6: Final answer
    x = 1,242,735.90

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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.