Home / 1,018,506.51-1,405,011.96-691,836.39

Finding the Fourth Proportional to 1,018,506.51, 1,405,011.96 and 691,836.39

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Solution

The fourth proportional to 1,018,506.51, 1,405,011.96 and 691,836.39 is: 954,376.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,506.51 : 1,405,011.96 = 691,836.39 : x
  2. Step 2: Convert to fraction form
    1,018,506.51/1,405,011.96 = 691,836.39/x
  3. Step 3: Cross multiply
    1,018,506.51x = 1,405,011.96 × 691,836.39
  4. Step 4: Simplify right side
    1,018,506.51x = 972,038,402,313.22
  5. Step 5: Solve for x
    x = 972,038,402,313.22/1,018,506.51
  6. Step 6: Final answer
    x = 954,376.23

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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.