Home / 679,970.60-1,020,177.80-325,012.28

Finding the Fourth Proportional to 679,970.60, 1,020,177.80 and 325,012.28

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Solution

The fourth proportional to 679,970.60, 1,020,177.80 and 325,012.28 is: 487,624.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,970.60 : 1,020,177.80 = 325,012.28 : x
  2. Step 2: Convert to fraction form
    679,970.60/1,020,177.80 = 325,012.28/x
  3. Step 3: Cross multiply
    679,970.60x = 1,020,177.80 × 325,012.28
  4. Step 4: Simplify right side
    679,970.60x = 331,570,312,783.38
  5. Step 5: Solve for x
    x = 331,570,312,783.38/679,970.60
  6. Step 6: Final answer
    x = 487,624.48

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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.