Home / 740,027.39-1,021,237.88-400,495.64

Finding the Fourth Proportional to 740,027.39, 1,021,237.88 and 400,495.64

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Solution

The fourth proportional to 740,027.39, 1,021,237.88 and 400,495.64 is: 552,684.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,027.39 : 1,021,237.88 = 400,495.64 : x
  2. Step 2: Convert to fraction form
    740,027.39/1,021,237.88 = 400,495.64/x
  3. Step 3: Cross multiply
    740,027.39x = 1,021,237.88 × 400,495.64
  4. Step 4: Simplify right side
    740,027.39x = 409,001,316,978.64
  5. Step 5: Solve for x
    x = 409,001,316,978.64/740,027.39
  6. Step 6: Final answer
    x = 552,684.03

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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.