Home / 1,087,074-1,628,835.21-660,740.22

Finding the Fourth Proportional to 1,087,074, 1,628,835.21 and 660,740.22

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Solution

The fourth proportional to 1,087,074, 1,628,835.21 and 660,740.22 is: 990,030.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,074 : 1,628,835.21 = 660,740.22 : x
  2. Step 2: Convert to fraction form
    1,087,074/1,628,835.21 = 660,740.22/x
  3. Step 3: Cross multiply
    1,087,074x = 1,628,835.21 × 660,740.22
  4. Step 4: Simplify right side
    1,087,074x = 1,076,236,934,999.15
  5. Step 5: Solve for x
    x = 1,076,236,934,999.15/1,087,074
  6. Step 6: Final answer
    x = 990,030.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.