Home / 851,981.28-1,175,727.60-470,024.16

Finding the Fourth Proportional to 851,981.28, 1,175,727.60 and 470,024.16

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Solution

The fourth proportional to 851,981.28, 1,175,727.60 and 470,024.16 is: 648,629.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,981.28 : 1,175,727.60 = 470,024.16 : x
  2. Step 2: Convert to fraction form
    851,981.28/1,175,727.60 = 470,024.16/x
  3. Step 3: Cross multiply
    851,981.28x = 1,175,727.60 × 470,024.16
  4. Step 4: Simplify right side
    851,981.28x = 552,620,377,578.82
  5. Step 5: Solve for x
    x = 552,620,377,578.82/851,981.28
  6. Step 6: Final answer
    x = 648,629.72

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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.