Home / 760,723.26-1,049,830.90-421,191.50

Finding the Fourth Proportional to 760,723.26, 1,049,830.90 and 421,191.50

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Solution

The fourth proportional to 760,723.26, 1,049,830.90 and 421,191.50 is: 581,262.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,723.26 : 1,049,830.90 = 421,191.50 : x
  2. Step 2: Convert to fraction form
    760,723.26/1,049,830.90 = 421,191.50/x
  3. Step 3: Cross multiply
    760,723.26x = 1,049,830.90 × 421,191.50
  4. Step 4: Simplify right side
    760,723.26x = 442,179,851,517.35
  5. Step 5: Solve for x
    x = 442,179,851,517.35/760,723.26
  6. Step 6: Final answer
    x = 581,262.43

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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.