Home / 760,712.50-1,049,816.06-421,180.75

Finding the Fourth Proportional to 760,712.50, 1,049,816.06 and 421,180.75

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Solution

The fourth proportional to 760,712.50, 1,049,816.06 and 421,180.75 is: 581,247.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,712.50 : 1,049,816.06 = 421,180.75 : x
  2. Step 2: Convert to fraction form
    760,712.50/1,049,816.06 = 421,180.75/x
  3. Step 3: Cross multiply
    760,712.50x = 1,049,816.06 × 421,180.75
  4. Step 4: Simplify right side
    760,712.50x = 442,162,315,512.85
  5. Step 5: Solve for x
    x = 442,162,315,512.85/760,712.50
  6. Step 6: Final answer
    x = 581,247.60

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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.