Home / 930,390.60-1,395,866.08-290,668.50

Finding the Fourth Proportional to 930,390.60, 1,395,866.08 and 290,668.50

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Solution

The fourth proportional to 930,390.60, 1,395,866.08 and 290,668.50 is: 436,090.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,390.60 : 1,395,866.08 = 290,668.50 : x
  2. Step 2: Convert to fraction form
    930,390.60/1,395,866.08 = 290,668.50/x
  3. Step 3: Cross multiply
    930,390.60x = 1,395,866.08 × 290,668.50
  4. Step 4: Simplify right side
    930,390.60x = 405,734,299,674.48
  5. Step 5: Solve for x
    x = 405,734,299,674.48/930,390.60
  6. Step 6: Final answer
    x = 436,090.28

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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.