Home / 890,242.12-1,334,430.06-328,918.60

Finding the Fourth Proportional to 890,242.12, 1,334,430.06 and 328,918.60

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Solution

The fourth proportional to 890,242.12, 1,334,430.06 and 328,918.60 is: 493,033.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,242.12 : 1,334,430.06 = 328,918.60 : x
  2. Step 2: Convert to fraction form
    890,242.12/1,334,430.06 = 328,918.60/x
  3. Step 3: Cross multiply
    890,242.12x = 1,334,430.06 × 328,918.60
  4. Step 4: Simplify right side
    890,242.12x = 438,918,867,133.12
  5. Step 5: Solve for x
    x = 438,918,867,133.12/890,242.12
  6. Step 6: Final answer
    x = 493,033.14

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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.