Home / 727,912.40-1,004,477.64-401,160.56

Finding the Fourth Proportional to 727,912.40, 1,004,477.64 and 401,160.56

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Solution

The fourth proportional to 727,912.40, 1,004,477.64 and 401,160.56 is: 553,578.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,912.40 : 1,004,477.64 = 401,160.56 : x
  2. Step 2: Convert to fraction form
    727,912.40/1,004,477.64 = 401,160.56/x
  3. Step 3: Cross multiply
    727,912.40x = 1,004,477.64 × 401,160.56
  4. Step 4: Simplify right side
    727,912.40x = 402,956,812,569.88
  5. Step 5: Solve for x
    x = 402,956,812,569.88/727,912.40
  6. Step 6: Final answer
    x = 553,578.72

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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.