Home / 1,431,449.76-1,975,425.18-786,897.12

Finding the Fourth Proportional to 1,431,449.76, 1,975,425.18 and 786,897.12

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Solution

The fourth proportional to 1,431,449.76, 1,975,425.18 and 786,897.12 is: 1,085,931.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,449.76 : 1,975,425.18 = 786,897.12 : x
  2. Step 2: Convert to fraction form
    1,431,449.76/1,975,425.18 = 786,897.12/x
  3. Step 3: Cross multiply
    1,431,449.76x = 1,975,425.18 × 786,897.12
  4. Step 4: Simplify right side
    1,431,449.76x = 1,554,456,384,917.48
  5. Step 5: Solve for x
    x = 1,554,456,384,917.48/1,431,449.76
  6. Step 6: Final answer
    x = 1,085,931.50

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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.