Home / 939,859.18-1,297,006.86-510,139.20

Finding the Fourth Proportional to 939,859.18, 1,297,006.86 and 510,139.20

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Solution

The fourth proportional to 939,859.18, 1,297,006.86 and 510,139.20 is: 703,992.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,859.18 : 1,297,006.86 = 510,139.20 : x
  2. Step 2: Convert to fraction form
    939,859.18/1,297,006.86 = 510,139.20/x
  3. Step 3: Cross multiply
    939,859.18x = 1,297,006.86 × 510,139.20
  4. Step 4: Simplify right side
    939,859.18x = 661,654,041,954.91
  5. Step 5: Solve for x
    x = 661,654,041,954.91/939,859.18
  6. Step 6: Final answer
    x = 703,992.74

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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.