Home / 1,009,938.03-1,392,453.87-646,764.81

Finding the Fourth Proportional to 1,009,938.03, 1,392,453.87 and 646,764.81

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Solution

The fourth proportional to 1,009,938.03, 1,392,453.87 and 646,764.81 is: 891,728.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,009,938.03 : 1,392,453.87 = 646,764.81 : x
  2. Step 2: Convert to fraction form
    1,009,938.03/1,392,453.87 = 646,764.81/x
  3. Step 3: Cross multiply
    1,009,938.03x = 1,392,453.87 × 646,764.81
  4. Step 4: Simplify right side
    1,009,938.03x = 900,590,162,664.32
  5. Step 5: Solve for x
    x = 900,590,162,664.32/1,009,938.03
  6. Step 6: Final answer
    x = 891,728.14

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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.