Home / 1,230,840.32-1,697,220.61-800,322.08

Finding the Fourth Proportional to 1,230,840.32, 1,697,220.61 and 800,322.08

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Solution

The fourth proportional to 1,230,840.32, 1,697,220.61 and 800,322.08 is: 1,103,573.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,840.32 : 1,697,220.61 = 800,322.08 : x
  2. Step 2: Convert to fraction form
    1,230,840.32/1,697,220.61 = 800,322.08/x
  3. Step 3: Cross multiply
    1,230,840.32x = 1,697,220.61 × 800,322.08
  4. Step 4: Simplify right side
    1,230,840.32x = 1,358,323,118,327.16
  5. Step 5: Solve for x
    x = 1,358,323,118,327.16/1,230,840.32
  6. Step 6: Final answer
    x = 1,103,573.80

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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.