Home / 486,054.40-729,081.60-465,059.20

Finding the Fourth Proportional to 486,054.40, 729,081.60 and 465,059.20

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Solution

The fourth proportional to 486,054.40, 729,081.60 and 465,059.20 is: 697,588.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,054.40 : 729,081.60 = 465,059.20 : x
  2. Step 2: Convert to fraction form
    486,054.40/729,081.60 = 465,059.20/x
  3. Step 3: Cross multiply
    486,054.40x = 729,081.60 × 465,059.20
  4. Step 4: Simplify right side
    486,054.40x = 339,066,105,630.72
  5. Step 5: Solve for x
    x = 339,066,105,630.72/486,054.40
  6. Step 6: Final answer
    x = 697,588.80

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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.