Home / 847,957.86-1,170,126.81-485,384.58

Finding the Fourth Proportional to 847,957.86, 1,170,126.81 and 485,384.58

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Solution

The fourth proportional to 847,957.86, 1,170,126.81 and 485,384.58 is: 669,799.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,957.86 : 1,170,126.81 = 485,384.58 : x
  2. Step 2: Convert to fraction form
    847,957.86/1,170,126.81 = 485,384.58/x
  3. Step 3: Cross multiply
    847,957.86x = 1,170,126.81 × 485,384.58
  4. Step 4: Simplify right side
    847,957.86x = 567,961,510,218.59
  5. Step 5: Solve for x
    x = 567,961,510,218.59/847,957.86
  6. Step 6: Final answer
    x = 669,799.22

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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.