Home / 909,980.60-1,364,970.90-404,540.60

Finding the Fourth Proportional to 909,980.60, 1,364,970.90 and 404,540.60

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Solution

The fourth proportional to 909,980.60, 1,364,970.90 and 404,540.60 is: 606,810.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,980.60 : 1,364,970.90 = 404,540.60 : x
  2. Step 2: Convert to fraction form
    909,980.60/1,364,970.90 = 404,540.60/x
  3. Step 3: Cross multiply
    909,980.60x = 1,364,970.90 × 404,540.60
  4. Step 4: Simplify right side
    909,980.60x = 552,186,146,868.54
  5. Step 5: Solve for x
    x = 552,186,146,868.54/909,980.60
  6. Step 6: Final answer
    x = 606,810.90

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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.