Home / 731,779.37-1,009,806.74-405,070.28

Finding the Fourth Proportional to 731,779.37, 1,009,806.74 and 405,070.28

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Solution

The fourth proportional to 731,779.37, 1,009,806.74 and 405,070.28 is: 558,969.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,779.37 : 1,009,806.74 = 405,070.28 : x
  2. Step 2: Convert to fraction form
    731,779.37/1,009,806.74 = 405,070.28/x
  3. Step 3: Cross multiply
    731,779.37x = 1,009,806.74 × 405,070.28
  4. Step 4: Simplify right side
    731,779.37x = 409,042,691,843.30
  5. Step 5: Solve for x
    x = 409,042,691,843.30/731,779.37
  6. Step 6: Final answer
    x = 558,969.97

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1.5x scale

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.