Home / 912,941.46-1,369,999.71-492,507.54

Finding the Fourth Proportional to 912,941.46, 1,369,999.71 and 492,507.54

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Solution

The fourth proportional to 912,941.46, 1,369,999.71 and 492,507.54 is: 739,078.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,941.46 : 1,369,999.71 = 492,507.54 : x
  2. Step 2: Convert to fraction form
    912,941.46/1,369,999.71 = 492,507.54/x
  3. Step 3: Cross multiply
    912,941.46x = 1,369,999.71 × 492,507.54
  4. Step 4: Simplify right side
    912,941.46x = 674,735,186,972.81
  5. Step 5: Solve for x
    x = 674,735,186,972.81/912,941.46
  6. Step 6: Final answer
    x = 739,078.26

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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.