Home / 1,098,457.50-1,515,894.39-621,529.50

Finding the Fourth Proportional to 1,098,457.50, 1,515,894.39 and 621,529.50

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Solution

The fourth proportional to 1,098,457.50, 1,515,894.39 and 621,529.50 is: 857,723.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,457.50 : 1,515,894.39 = 621,529.50 : x
  2. Step 2: Convert to fraction form
    1,098,457.50/1,515,894.39 = 621,529.50/x
  3. Step 3: Cross multiply
    1,098,457.50x = 1,515,894.39 × 621,529.50
  4. Step 4: Simplify right side
    1,098,457.50x = 942,173,082,269.51
  5. Step 5: Solve for x
    x = 942,173,082,269.51/1,098,457.50
  6. Step 6: Final answer
    x = 857,723.75

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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.