Home / 1,405,007.86-1,938,910.76-760,428.04

Finding the Fourth Proportional to 1,405,007.86, 1,938,910.76 and 760,428.04

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Solution

The fourth proportional to 1,405,007.86, 1,938,910.76 and 760,428.04 is: 1,049,390.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,007.86 : 1,938,910.76 = 760,428.04 : x
  2. Step 2: Convert to fraction form
    1,405,007.86/1,938,910.76 = 760,428.04/x
  3. Step 3: Cross multiply
    1,405,007.86x = 1,938,910.76 × 760,428.04
  4. Step 4: Simplify right side
    1,405,007.86x = 1,474,402,108,961.71
  5. Step 5: Solve for x
    x = 1,474,402,108,961.71/1,405,007.86
  6. Step 6: Final answer
    x = 1,049,390.65

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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.