Home / 928,065.16-1,392,544.86-478,806.76

Finding the Fourth Proportional to 928,065.16, 1,392,544.86 and 478,806.76

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Solution

The fourth proportional to 928,065.16, 1,392,544.86 and 478,806.76 is: 718,440.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,065.16 : 1,392,544.86 = 478,806.76 : x
  2. Step 2: Convert to fraction form
    928,065.16/1,392,544.86 = 478,806.76/x
  3. Step 3: Cross multiply
    928,065.16x = 1,392,544.86 × 478,806.76
  4. Step 4: Simplify right side
    928,065.16x = 666,759,883,214.50
  5. Step 5: Solve for x
    x = 666,759,883,214.50/928,065.16
  6. Step 6: Final answer
    x = 718,440.81

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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.