Home / 738,518.14-1,107,895.47-312,058.16

Finding the Fourth Proportional to 738,518.14, 1,107,895.47 and 312,058.16

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Solution

The fourth proportional to 738,518.14, 1,107,895.47 and 312,058.16 is: 468,137.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,518.14 : 1,107,895.47 = 312,058.16 : x
  2. Step 2: Convert to fraction form
    738,518.14/1,107,895.47 = 312,058.16/x
  3. Step 3: Cross multiply
    738,518.14x = 1,107,895.47 × 312,058.16
  4. Step 4: Simplify right side
    738,518.14x = 345,727,821,840.54
  5. Step 5: Solve for x
    x = 345,727,821,840.54/738,518.14
  6. Step 6: Final answer
    x = 468,137.21

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Double scale
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Similar ratio
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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.