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Finding the Third Proportional to 470,640 and 710,316

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Solution

The third proportional to 470,640 and 710,316 is: 1,072,048.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,640 : 710,316 = 710,316 : x
  2. Step 2: Convert to fraction form
    470,640/710,316 = 710,316/x
  3. Step 3: Cross multiply
    470,640x = 710,316 × 710,316
  4. Step 4: Simplify right side
    470,640x = 504,548,819,856
  5. Step 5: Solve for x
    x = 504,548,819,856/470,640
  6. Step 6: Final answer
    x = 1,072,048.32

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.