Home / 918,947.52-1,268,148.30-511,040.46

Finding the Fourth Proportional to 918,947.52, 1,268,148.30 and 511,040.46

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Solution

The fourth proportional to 918,947.52, 1,268,148.30 and 511,040.46 is: 705,236.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,947.52 : 1,268,148.30 = 511,040.46 : x
  2. Step 2: Convert to fraction form
    918,947.52/1,268,148.30 = 511,040.46/x
  3. Step 3: Cross multiply
    918,947.52x = 1,268,148.30 × 511,040.46
  4. Step 4: Simplify right side
    918,947.52x = 648,075,090,580.22
  5. Step 5: Solve for x
    x = 648,075,090,580.22/918,947.52
  6. Step 6: Final answer
    x = 705,236.24

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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.