Home / 920,443.08-1,269,906.96-538,199.28

Finding the Fourth Proportional to 920,443.08, 1,269,906.96 and 538,199.28

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Solution

The fourth proportional to 920,443.08, 1,269,906.96 and 538,199.28 is: 742,536.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,443.08 : 1,269,906.96 = 538,199.28 : x
  2. Step 2: Convert to fraction form
    920,443.08/1,269,906.96 = 538,199.28/x
  3. Step 3: Cross multiply
    920,443.08x = 1,269,906.96 × 538,199.28
  4. Step 4: Simplify right side
    920,443.08x = 683,463,011,538.99
  5. Step 5: Solve for x
    x = 683,463,011,538.99/920,443.08
  6. Step 6: Final answer
    x = 742,536.97

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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.