Home / 760,813.83-1,049,910.26-421,274.79

Finding the Fourth Proportional to 760,813.83, 1,049,910.26 and 421,274.79

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Solution

The fourth proportional to 760,813.83, 1,049,910.26 and 421,274.79 is: 581,352.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,813.83 : 1,049,910.26 = 421,274.79 : x
  2. Step 2: Convert to fraction form
    760,813.83/1,049,910.26 = 421,274.79/x
  3. Step 3: Cross multiply
    760,813.83x = 1,049,910.26 × 421,274.79
  4. Step 4: Simplify right side
    760,813.83x = 442,300,722,193.97
  5. Step 5: Solve for x
    x = 442,300,722,193.97/760,813.83
  6. Step 6: Final answer
    x = 581,352.11

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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.