Home / 877,988.86-1,316,845.99-278,871.15

Finding the Fourth Proportional to 877,988.86, 1,316,845.99 and 278,871.15

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Solution

The fourth proportional to 877,988.86, 1,316,845.99 and 278,871.15 is: 418,263.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,988.86 : 1,316,845.99 = 278,871.15 : x
  2. Step 2: Convert to fraction form
    877,988.86/1,316,845.99 = 278,871.15/x
  3. Step 3: Cross multiply
    877,988.86x = 1,316,845.99 × 278,871.15
  4. Step 4: Simplify right side
    877,988.86x = 367,230,355,604.19
  5. Step 5: Solve for x
    x = 367,230,355,604.19/877,988.86
  6. Step 6: Final answer
    x = 418,263.12

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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.