Home / 1,393,345.72-1,922,630.98-773,140.60

Finding the Fourth Proportional to 1,393,345.72, 1,922,630.98 and 773,140.60

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Solution

The fourth proportional to 1,393,345.72, 1,922,630.98 and 773,140.60 is: 1,066,830.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,393,345.72 : 1,922,630.98 = 773,140.60 : x
  2. Step 2: Convert to fraction form
    1,393,345.72/1,922,630.98 = 773,140.60/x
  3. Step 3: Cross multiply
    1,393,345.72x = 1,922,630.98 × 773,140.60
  4. Step 4: Simplify right side
    1,393,345.72x = 1,486,464,069,455.79
  5. Step 5: Solve for x
    x = 1,486,464,069,455.79/1,393,345.72
  6. Step 6: Final answer
    x = 1,066,830.76

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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.