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Finding the Third Proportional to 763,830 and 1,590,421.50

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Solution

The third proportional to 763,830 and 1,590,421.50 is: 3,311,522.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,830 : 1,590,421.50 = 1,590,421.50 : x
  2. Step 2: Convert to fraction form
    763,830/1,590,421.50 = 1,590,421.50/x
  3. Step 3: Cross multiply
    763,830x = 1,590,421.50 × 1,590,421.50
  4. Step 4: Simplify right side
    763,830x = 2,529,440,547,662.25
  5. Step 5: Solve for x
    x = 2,529,440,547,662.25/763,830
  6. Step 6: Final answer
    x = 3,311,522.91

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.