Home / 760,757.06-1,049,844.75-421,225.31

Finding the Fourth Proportional to 760,757.06, 1,049,844.75 and 421,225.31

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Solution

The fourth proportional to 760,757.06, 1,049,844.75 and 421,225.31 is: 581,290.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,757.06 : 1,049,844.75 = 421,225.31 : x
  2. Step 2: Convert to fraction form
    760,757.06/1,049,844.75 = 421,225.31/x
  3. Step 3: Cross multiply
    760,757.06x = 1,049,844.75 × 421,225.31
  4. Step 4: Simplify right side
    760,757.06x = 442,221,181,315.64
  5. Step 5: Solve for x
    x = 442,221,181,315.64/760,757.06
  6. Step 6: Final answer
    x = 581,290.93

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1.5x scale

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.