Home / 571,440.80-788,557.20-316,828.64

Finding the Fourth Proportional to 571,440.80, 788,557.20 and 316,828.64

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Solution

The fourth proportional to 571,440.80, 788,557.20 and 316,828.64 is: 437,206.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,440.80 : 788,557.20 = 316,828.64 : x
  2. Step 2: Convert to fraction form
    571,440.80/788,557.20 = 316,828.64/x
  3. Step 3: Cross multiply
    571,440.80x = 788,557.20 × 316,828.64
  4. Step 4: Simplify right side
    571,440.80x = 249,837,505,238.21
  5. Step 5: Solve for x
    x = 249,837,505,238.21/571,440.80
  6. Step 6: Final answer
    x = 437,206.28

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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.