Home / 1,222,613.80-1,833,920.70-423,629.80

Finding the Fourth Proportional to 1,222,613.80, 1,833,920.70 and 423,629.80

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Solution

The fourth proportional to 1,222,613.80, 1,833,920.70 and 423,629.80 is: 635,444.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222,613.80 : 1,833,920.70 = 423,629.80 : x
  2. Step 2: Convert to fraction form
    1,222,613.80/1,833,920.70 = 423,629.80/x
  3. Step 3: Cross multiply
    1,222,613.80x = 1,833,920.70 × 423,629.80
  4. Step 4: Simplify right side
    1,222,613.80x = 776,903,459,356.86
  5. Step 5: Solve for x
    x = 776,903,459,356.86/1,222,613.80
  6. Step 6: Final answer
    x = 635,444.70

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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.