Home / 1,320,475.47-1,822,263.74-776,634.18

Finding the Fourth Proportional to 1,320,475.47, 1,822,263.74 and 776,634.18

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Solution

The fourth proportional to 1,320,475.47, 1,822,263.74 and 776,634.18 is: 1,071,759.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,475.47 : 1,822,263.74 = 776,634.18 : x
  2. Step 2: Convert to fraction form
    1,320,475.47/1,822,263.74 = 776,634.18/x
  3. Step 3: Cross multiply
    1,320,475.47x = 1,822,263.74 × 776,634.18
  4. Step 4: Simplify right side
    1,320,475.47x = 1,415,232,301,575.46
  5. Step 5: Solve for x
    x = 1,415,232,301,575.46/1,320,475.47
  6. Step 6: Final answer
    x = 1,071,759.63

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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.