Home / 760,720.26-1,049,826.76-421,188.50

Finding the Fourth Proportional to 760,720.26, 1,049,826.76 and 421,188.50

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Solution

The fourth proportional to 760,720.26, 1,049,826.76 and 421,188.50 is: 581,258.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,720.26 : 1,049,826.76 = 421,188.50 : x
  2. Step 2: Convert to fraction form
    760,720.26/1,049,826.76 = 421,188.50/x
  3. Step 3: Cross multiply
    760,720.26x = 1,049,826.76 × 421,188.50
  4. Step 4: Simplify right side
    760,720.26x = 442,174,958,304.26
  5. Step 5: Solve for x
    x = 442,174,958,304.26/760,720.26
  6. Step 6: Final answer
    x = 581,258.29

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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.