Home / 674,559.36-1,004,320.80-665,140.32

Finding the Fourth Proportional to 674,559.36, 1,004,320.80 and 665,140.32

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Solution

The fourth proportional to 674,559.36, 1,004,320.80 and 665,140.32 is: 990,297.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,559.36 : 1,004,320.80 = 665,140.32 : x
  2. Step 2: Convert to fraction form
    674,559.36/1,004,320.80 = 665,140.32/x
  3. Step 3: Cross multiply
    674,559.36x = 1,004,320.80 × 665,140.32
  4. Step 4: Simplify right side
    674,559.36x = 668,014,258,294.66
  5. Step 5: Solve for x
    x = 668,014,258,294.66/674,559.36
  6. Step 6: Final answer
    x = 990,297.22

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.