Home / 760,736.36-1,049,848.98-421,204.64

Finding the Fourth Proportional to 760,736.36, 1,049,848.98 and 421,204.64

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Solution

The fourth proportional to 760,736.36, 1,049,848.98 and 421,204.64 is: 581,280.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,736.36 : 1,049,848.98 = 421,204.64 : x
  2. Step 2: Convert to fraction form
    760,736.36/1,049,848.98 = 421,204.64/x
  3. Step 3: Cross multiply
    760,736.36x = 1,049,848.98 × 421,204.64
  4. Step 4: Simplify right side
    760,736.36x = 442,201,261,675.27
  5. Step 5: Solve for x
    x = 442,201,261,675.27/760,736.36
  6. Step 6: Final answer
    x = 581,280.57

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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.