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Finding the Fourth Proportional to 611,580.40, 917,370.60 and 512,673.33

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Solution

The fourth proportional to 611,580.40, 917,370.60 and 512,673.33 is: 769,010.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,580.40 : 917,370.60 = 512,673.33 : x
  2. Step 2: Convert to fraction form
    611,580.40/917,370.60 = 512,673.33/x
  3. Step 3: Cross multiply
    611,580.40x = 917,370.60 × 512,673.33
  4. Step 4: Simplify right side
    611,580.40x = 470,311,440,346.10
  5. Step 5: Solve for x
    x = 470,311,440,346.10/611,580.40
  6. Step 6: Final answer
    x = 769,010.00

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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.