Home / 1,378,003.23-1,901,707.74-766,218.81

Finding the Fourth Proportional to 1,378,003.23, 1,901,707.74 and 766,218.81

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Solution

The fourth proportional to 1,378,003.23, 1,901,707.74 and 766,218.81 is: 1,057,417.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,003.23 : 1,901,707.74 = 766,218.81 : x
  2. Step 2: Convert to fraction form
    1,378,003.23/1,901,707.74 = 766,218.81/x
  3. Step 3: Cross multiply
    1,378,003.23x = 1,901,707.74 × 766,218.81
  4. Step 4: Simplify right side
    1,378,003.23x = 1,457,124,241,510.59
  5. Step 5: Solve for x
    x = 1,457,124,241,510.59/1,378,003.23
  6. Step 6: Final answer
    x = 1,057,417.15

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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.