Home / 1,426,812.07-1,969,000.18-782,218.42

Finding the Fourth Proportional to 1,426,812.07, 1,969,000.18 and 782,218.42

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Solution

The fourth proportional to 1,426,812.07, 1,969,000.18 and 782,218.42 is: 1,079,461.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426,812.07 : 1,969,000.18 = 782,218.42 : x
  2. Step 2: Convert to fraction form
    1,426,812.07/1,969,000.18 = 782,218.42/x
  3. Step 3: Cross multiply
    1,426,812.07x = 1,969,000.18 × 782,218.42
  4. Step 4: Simplify right side
    1,426,812.07x = 1,540,188,207,823.77
  5. Step 5: Solve for x
    x = 1,540,188,207,823.77/1,426,812.07
  6. Step 6: Final answer
    x = 1,079,461.16

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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.