Home / 762,317.87-1,143,582.39-257,023.49

Finding the Fourth Proportional to 762,317.87, 1,143,582.39 and 257,023.49

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Solution

The fourth proportional to 762,317.87, 1,143,582.39 and 257,023.49 is: 385,570.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,317.87 : 1,143,582.39 = 257,023.49 : x
  2. Step 2: Convert to fraction form
    762,317.87/1,143,582.39 = 257,023.49/x
  3. Step 3: Cross multiply
    762,317.87x = 1,143,582.39 × 257,023.49
  4. Step 4: Simplify right side
    762,317.87x = 293,927,536,980.34
  5. Step 5: Solve for x
    x = 293,927,536,980.34/762,317.87
  6. Step 6: Final answer
    x = 385,570.83

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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.