Home / 1,286,985.85-1,929,331.61-488,827.89

Finding the Fourth Proportional to 1,286,985.85, 1,929,331.61 and 488,827.89

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Solution

The fourth proportional to 1,286,985.85, 1,929,331.61 and 488,827.89 is: 732,806.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,985.85 : 1,929,331.61 = 488,827.89 : x
  2. Step 2: Convert to fraction form
    1,286,985.85/1,929,331.61 = 488,827.89/x
  3. Step 3: Cross multiply
    1,286,985.85x = 1,929,331.61 × 488,827.89
  4. Step 4: Simplify right side
    1,286,985.85x = 943,111,097,582.46
  5. Step 5: Solve for x
    x = 943,111,097,582.46/1,286,985.85
  6. Step 6: Final answer
    x = 732,806.11

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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.