Home / 873,804.40-1,308,082.20-518,635.60

Finding the Fourth Proportional to 873,804.40, 1,308,082.20 and 518,635.60

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Solution

The fourth proportional to 873,804.40, 1,308,082.20 and 518,635.60 is: 776,395.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,804.40 : 1,308,082.20 = 518,635.60 : x
  2. Step 2: Convert to fraction form
    873,804.40/1,308,082.20 = 518,635.60/x
  3. Step 3: Cross multiply
    873,804.40x = 1,308,082.20 × 518,635.60
  4. Step 4: Simplify right side
    873,804.40x = 678,417,996,646.32
  5. Step 5: Solve for x
    x = 678,417,996,646.32/873,804.40
  6. Step 6: Final answer
    x = 776,395.72

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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.