Home / 740,960.64-1,022,527.38-401,428.86

Finding the Fourth Proportional to 740,960.64, 1,022,527.38 and 401,428.86

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Solution

The fourth proportional to 740,960.64, 1,022,527.38 and 401,428.86 is: 553,972.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,960.64 : 1,022,527.38 = 401,428.86 : x
  2. Step 2: Convert to fraction form
    740,960.64/1,022,527.38 = 401,428.86/x
  3. Step 3: Cross multiply
    740,960.64x = 1,022,527.38 × 401,428.86
  4. Step 4: Simplify right side
    740,960.64x = 410,472,000,472.19
  5. Step 5: Solve for x
    x = 410,472,000,472.19/740,960.64
  6. Step 6: Final answer
    x = 553,972.75

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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.