Home / 579,359.12-799,503.48-317,710.64

Finding the Fourth Proportional to 579,359.12, 799,503.48 and 317,710.64

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Solution

The fourth proportional to 579,359.12, 799,503.48 and 317,710.64 is: 438,434.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,359.12 : 799,503.48 = 317,710.64 : x
  2. Step 2: Convert to fraction form
    579,359.12/799,503.48 = 317,710.64/x
  3. Step 3: Cross multiply
    579,359.12x = 799,503.48 × 317,710.64
  4. Step 4: Simplify right side
    579,359.12x = 254,010,762,313.03
  5. Step 5: Solve for x
    x = 254,010,762,313.03/579,359.12
  6. Step 6: Final answer
    x = 438,434.04

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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.