Home / 781,928.52-1,078,946.64-437,746.56

Finding the Fourth Proportional to 781,928.52, 1,078,946.64 and 437,746.56

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Solution

The fourth proportional to 781,928.52, 1,078,946.64 and 437,746.56 is: 604,026.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,928.52 : 1,078,946.64 = 437,746.56 : x
  2. Step 2: Convert to fraction form
    781,928.52/1,078,946.64 = 437,746.56/x
  3. Step 3: Cross multiply
    781,928.52x = 1,078,946.64 × 437,746.56
  4. Step 4: Simplify right side
    781,928.52x = 472,305,180,083.56
  5. Step 5: Solve for x
    x = 472,305,180,083.56/781,928.52
  6. Step 6: Final answer
    x = 604,026.03

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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.