Home / 2,709,920.88-4,064,882.76-688,316.40

Finding the Fourth Proportional to 2,709,920.88, 4,064,882.76 and 688,316.40

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Solution

The fourth proportional to 2,709,920.88, 4,064,882.76 and 688,316.40 is: 1,032,474.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,709,920.88 : 4,064,882.76 = 688,316.40 : x
  2. Step 2: Convert to fraction form
    2,709,920.88/4,064,882.76 = 688,316.40/x
  3. Step 3: Cross multiply
    2,709,920.88x = 4,064,882.76 × 688,316.40
  4. Step 4: Simplify right side
    2,709,920.88x = 2,797,925,467,785.26
  5. Step 5: Solve for x
    x = 2,797,925,467,785.26/2,709,920.88
  6. Step 6: Final answer
    x = 1,032,474.97

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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.