Home / 877,663.14-1,316,540.30-278,671.20

Finding the Fourth Proportional to 877,663.14, 1,316,540.30 and 278,671.20

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Solution

The fourth proportional to 877,663.14, 1,316,540.30 and 278,671.20 is: 418,021.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,663.14 : 1,316,540.30 = 278,671.20 : x
  2. Step 2: Convert to fraction form
    877,663.14/1,316,540.30 = 278,671.20/x
  3. Step 3: Cross multiply
    877,663.14x = 1,316,540.30 × 278,671.20
  4. Step 4: Simplify right side
    877,663.14x = 366,881,863,856.00
  5. Step 5: Solve for x
    x = 366,881,863,856.00/877,663.14
  6. Step 6: Final answer
    x = 418,021.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.