Home / 1,689,430.03-2,331,394.89-915,041.61

Finding the Fourth Proportional to 1,689,430.03, 2,331,394.89 and 915,041.61

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Solution

The fourth proportional to 1,689,430.03, 2,331,394.89 and 915,041.61 is: 1,262,747.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,689,430.03 : 2,331,394.89 = 915,041.61 : x
  2. Step 2: Convert to fraction form
    1,689,430.03/2,331,394.89 = 915,041.61/x
  3. Step 3: Cross multiply
    1,689,430.03x = 2,331,394.89 × 915,041.61
  4. Step 4: Simplify right side
    1,689,430.03x = 2,133,323,330,259.97
  5. Step 5: Solve for x
    x = 2,133,323,330,259.97/1,689,430.03
  6. Step 6: Final answer
    x = 1,262,747.37

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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.