Home / 986,384.89-1,362,151.47-932,649.67

Finding the Fourth Proportional to 986,384.89, 1,362,151.47 and 932,649.67

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Solution

The fourth proportional to 986,384.89, 1,362,151.47 and 932,649.67 is: 1,287,945.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,384.89 : 1,362,151.47 = 932,649.67 : x
  2. Step 2: Convert to fraction form
    986,384.89/1,362,151.47 = 932,649.67/x
  3. Step 3: Cross multiply
    986,384.89x = 1,362,151.47 × 932,649.67
  4. Step 4: Simplify right side
    986,384.89x = 1,270,410,118,985.51
  5. Step 5: Solve for x
    x = 1,270,410,118,985.51/986,384.89
  6. Step 6: Final answer
    x = 1,287,945.64

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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.