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Finding the Fourth Proportional to 556,163.28, 767,544.66 and 314,448.20

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Solution

The fourth proportional to 556,163.28, 767,544.66 and 314,448.20 is: 433,960.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,163.28 : 767,544.66 = 314,448.20 : x
  2. Step 2: Convert to fraction form
    556,163.28/767,544.66 = 314,448.20/x
  3. Step 3: Cross multiply
    556,163.28x = 767,544.66 × 314,448.20
  4. Step 4: Simplify right side
    556,163.28x = 241,353,036,756.61
  5. Step 5: Solve for x
    x = 241,353,036,756.61/556,163.28
  6. Step 6: Final answer
    x = 433,960.75

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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.