Home / 821,868.40-1,232,495.40-571,807.60

Finding the Fourth Proportional to 821,868.40, 1,232,495.40 and 571,807.60

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Solution

The fourth proportional to 821,868.40, 1,232,495.40 and 571,807.60 is: 857,497.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,868.40 : 1,232,495.40 = 571,807.60 : x
  2. Step 2: Convert to fraction form
    821,868.40/1,232,495.40 = 571,807.60/x
  3. Step 3: Cross multiply
    821,868.40x = 1,232,495.40 × 571,807.60
  4. Step 4: Simplify right side
    821,868.40x = 704,750,236,685.04
  5. Step 5: Solve for x
    x = 704,750,236,685.04/821,868.40
  6. Step 6: Final answer
    x = 857,497.67

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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.