Home / 781,566.35-1,078,580.87-437,399.58

Finding the Fourth Proportional to 781,566.35, 1,078,580.87 and 437,399.58

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Solution

The fourth proportional to 781,566.35, 1,078,580.87 and 437,399.58 is: 603,622.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,566.35 : 1,078,580.87 = 437,399.58 : x
  2. Step 2: Convert to fraction form
    781,566.35/1,078,580.87 = 437,399.58/x
  3. Step 3: Cross multiply
    781,566.35x = 1,078,580.87 × 437,399.58
  4. Step 4: Simplify right side
    781,566.35x = 471,770,817,347.04
  5. Step 5: Solve for x
    x = 471,770,817,347.04/781,566.35
  6. Step 6: Final answer
    x = 603,622.23

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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.