Home / 420,563.52-580,300.04-239,264.87

Finding the Fourth Proportional to 420,563.52, 580,300.04 and 239,264.87

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Solution

The fourth proportional to 420,563.52, 580,300.04 and 239,264.87 is: 330,141.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,563.52 : 580,300.04 = 239,264.87 : x
  2. Step 2: Convert to fraction form
    420,563.52/580,300.04 = 239,264.87/x
  3. Step 3: Cross multiply
    420,563.52x = 580,300.04 × 239,264.87
  4. Step 4: Simplify right side
    420,563.52x = 138,845,409,533.77
  5. Step 5: Solve for x
    x = 138,845,409,533.77/420,563.52
  6. Step 6: Final answer
    x = 330,141.35

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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.