Home / 437,331.40-656,033.58-320,457.16

Finding the Fourth Proportional to 437,331.40, 656,033.58 and 320,457.16

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Solution

The fourth proportional to 437,331.40, 656,033.58 and 320,457.16 is: 480,712.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,331.40 : 656,033.58 = 320,457.16 : x
  2. Step 2: Convert to fraction form
    437,331.40/656,033.58 = 320,457.16/x
  3. Step 3: Cross multiply
    437,331.40x = 656,033.58 × 320,457.16
  4. Step 4: Simplify right side
    437,331.40x = 210,230,657,911.43
  5. Step 5: Solve for x
    x = 210,230,657,911.43/437,331.40
  6. Step 6: Final answer
    x = 480,712.47

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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.