Home / 1,086,756.40-1,628,014.20-711,642.16

Finding the Fourth Proportional to 1,086,756.40, 1,628,014.20 and 711,642.16

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Solution

The fourth proportional to 1,086,756.40, 1,628,014.20 and 711,642.16 is: 1,066,074.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,756.40 : 1,628,014.20 = 711,642.16 : x
  2. Step 2: Convert to fraction form
    1,086,756.40/1,628,014.20 = 711,642.16/x
  3. Step 3: Cross multiply
    1,086,756.40x = 1,628,014.20 × 711,642.16
  4. Step 4: Simplify right side
    1,086,756.40x = 1,158,563,541,798.67
  5. Step 5: Solve for x
    x = 1,158,563,541,798.67/1,086,756.40
  6. Step 6: Final answer
    x = 1,066,074.74

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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.