Home / 784,973.79-1,082,980.40-445,245.21

Finding the Fourth Proportional to 784,973.79, 1,082,980.40 and 445,245.21

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Solution

The fourth proportional to 784,973.79, 1,082,980.40 and 445,245.21 is: 614,277.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,973.79 : 1,082,980.40 = 445,245.21 : x
  2. Step 2: Convert to fraction form
    784,973.79/1,082,980.40 = 445,245.21/x
  3. Step 3: Cross multiply
    784,973.79x = 1,082,980.40 × 445,245.21
  4. Step 4: Simplify right side
    784,973.79x = 482,191,833,397.66
  5. Step 5: Solve for x
    x = 482,191,833,397.66/784,973.79
  6. Step 6: Final answer
    x = 614,277.62

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1.5x scale

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.