Home / 1,689,624.34-2,331,662.16-915,240.40

Finding the Fourth Proportional to 1,689,624.34, 2,331,662.16 and 915,240.40

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Solution

The fourth proportional to 1,689,624.34, 2,331,662.16 and 915,240.40 is: 1,263,021.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,689,624.34 : 2,331,662.16 = 915,240.40 : x
  2. Step 2: Convert to fraction form
    1,689,624.34/2,331,662.16 = 915,240.40/x
  3. Step 3: Cross multiply
    1,689,624.34x = 2,331,662.16 × 915,240.40
  4. Step 4: Simplify right side
    1,689,624.34x = 2,134,031,407,983.26
  5. Step 5: Solve for x
    x = 2,134,031,407,983.26/1,689,624.34
  6. Step 6: Final answer
    x = 1,263,021.23

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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.