Home / 740,007.60-1,110,270.60-319,412.40

Finding the Fourth Proportional to 740,007.60, 1,110,270.60 and 319,412.40

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Solution

The fourth proportional to 740,007.60, 1,110,270.60 and 319,412.40 is: 479,230.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,007.60 : 1,110,270.60 = 319,412.40 : x
  2. Step 2: Convert to fraction form
    740,007.60/1,110,270.60 = 319,412.40/x
  3. Step 3: Cross multiply
    740,007.60x = 1,110,270.60 × 319,412.40
  4. Step 4: Simplify right side
    740,007.60x = 354,634,196,995.44
  5. Step 5: Solve for x
    x = 354,634,196,995.44/740,007.60
  6. Step 6: Final answer
    x = 479,230.48

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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.