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Finding the Fourth Proportional to 501,947.76, 692,689.04 and 275,607.84

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Solution

The fourth proportional to 501,947.76, 692,689.04 and 275,607.84 is: 380,339.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,947.76 : 692,689.04 = 275,607.84 : x
  2. Step 2: Convert to fraction form
    501,947.76/692,689.04 = 275,607.84/x
  3. Step 3: Cross multiply
    501,947.76x = 692,689.04 × 275,607.84
  4. Step 4: Simplify right side
    501,947.76x = 190,910,530,106.07
  5. Step 5: Solve for x
    x = 190,910,530,106.07/501,947.76
  6. Step 6: Final answer
    x = 380,339.44

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1.5x scale

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.