Home / 731,643.72-1,009,707.60-409,334.64

Finding the Fourth Proportional to 731,643.72, 1,009,707.60 and 409,334.64

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Solution

The fourth proportional to 731,643.72, 1,009,707.60 and 409,334.64 is: 564,903.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,643.72 : 1,009,707.60 = 409,334.64 : x
  2. Step 2: Convert to fraction form
    731,643.72/1,009,707.60 = 409,334.64/x
  3. Step 3: Cross multiply
    731,643.72x = 1,009,707.60 × 409,334.64
  4. Step 4: Simplify right side
    731,643.72x = 413,308,296,951.26
  5. Step 5: Solve for x
    x = 413,308,296,951.26/731,643.72
  6. Step 6: Final answer
    x = 564,903.77

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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.