Home / 730,726.40-1,096,089.60-257,945.60

Finding the Fourth Proportional to 730,726.40, 1,096,089.60 and 257,945.60

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Solution

The fourth proportional to 730,726.40, 1,096,089.60 and 257,945.60 is: 386,918.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,726.40 : 1,096,089.60 = 257,945.60 : x
  2. Step 2: Convert to fraction form
    730,726.40/1,096,089.60 = 257,945.60/x
  3. Step 3: Cross multiply
    730,726.40x = 1,096,089.60 × 257,945.60
  4. Step 4: Simplify right side
    730,726.40x = 282,731,489,525.76
  5. Step 5: Solve for x
    x = 282,731,489,525.76/730,726.40
  6. Step 6: Final answer
    x = 386,918.40

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Double scale
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Similar ratio
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1.5x scale

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.