Home / 830,338.77-1,145,862.21-467,879.36

Finding the Fourth Proportional to 830,338.77, 1,145,862.21 and 467,879.36

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Solution

The fourth proportional to 830,338.77, 1,145,862.21 and 467,879.36 is: 645,670.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,338.77 : 1,145,862.21 = 467,879.36 : x
  2. Step 2: Convert to fraction form
    830,338.77/1,145,862.21 = 467,879.36/x
  3. Step 3: Cross multiply
    830,338.77x = 1,145,862.21 × 467,879.36
  4. Step 4: Simplify right side
    830,338.77x = 536,125,280,327.64
  5. Step 5: Solve for x
    x = 536,125,280,327.64/830,338.77
  6. Step 6: Final answer
    x = 645,670.54

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1.5x scale

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.