Home / 1,779,123.90-2,455,790.25-1,081,402.62

Finding the Fourth Proportional to 1,779,123.90, 2,455,790.25 and 1,081,402.62

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Solution

The fourth proportional to 1,779,123.90, 2,455,790.25 and 1,081,402.62 is: 1,492,699.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,779,123.90 : 2,455,790.25 = 1,081,402.62 : x
  2. Step 2: Convert to fraction form
    1,779,123.90/2,455,790.25 = 1,081,402.62/x
  3. Step 3: Cross multiply
    1,779,123.90x = 2,455,790.25 × 1,081,402.62
  4. Step 4: Simplify right side
    1,779,123.90x = 2,655,698,010,520.46
  5. Step 5: Solve for x
    x = 2,655,698,010,520.46/1,779,123.90
  6. Step 6: Final answer
    x = 1,492,699.87

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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.