Home / 679,967.40-1,020,736.80-365,039.40

Finding the Fourth Proportional to 679,967.40, 1,020,736.80 and 365,039.40

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Solution

The fourth proportional to 679,967.40, 1,020,736.80 and 365,039.40 is: 547,980.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,967.40 : 1,020,736.80 = 365,039.40 : x
  2. Step 2: Convert to fraction form
    679,967.40/1,020,736.80 = 365,039.40/x
  3. Step 3: Cross multiply
    679,967.40x = 1,020,736.80 × 365,039.40
  4. Step 4: Simplify right side
    679,967.40x = 372,609,149,029.92
  5. Step 5: Solve for x
    x = 372,609,149,029.92/679,967.40
  6. Step 6: Final answer
    x = 547,980.90

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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.