Home / 639,820.51-883,312.67-443,870.10

Finding the Fourth Proportional to 639,820.51, 883,312.67 and 443,870.10

Calculator

Solution

The fourth proportional to 639,820.51, 883,312.67 and 443,870.10 is: 612,790.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,820.51 : 883,312.67 = 443,870.10 : x
  2. Step 2: Convert to fraction form
    639,820.51/883,312.67 = 443,870.10/x
  3. Step 3: Cross multiply
    639,820.51x = 883,312.67 × 443,870.10
  4. Step 4: Simplify right side
    639,820.51x = 392,076,084,273.84
  5. Step 5: Solve for x
    x = 392,076,084,273.84/639,820.51
  6. Step 6: Final answer
    x = 612,790.74

Related Problems

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.