Home / 918,932.02-1,268,159.32-511,075.66

Finding the Fourth Proportional to 918,932.02, 1,268,159.32 and 511,075.66

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Solution

The fourth proportional to 918,932.02, 1,268,159.32 and 511,075.66 is: 705,302.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,932.02 : 1,268,159.32 = 511,075.66 : x
  2. Step 2: Convert to fraction form
    918,932.02/1,268,159.32 = 511,075.66/x
  3. Step 3: Cross multiply
    918,932.02x = 1,268,159.32 × 511,075.66
  4. Step 4: Simplify right side
    918,932.02x = 648,125,361,454.15
  5. Step 5: Solve for x
    x = 648,125,361,454.15/918,932.02
  6. Step 6: Final answer
    x = 705,302.84

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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.