Home / 428,130.25-590,820-234,545.00

Finding the Fourth Proportional to 428,130.25, 590,820 and 234,545.00

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Solution

The fourth proportional to 428,130.25, 590,820 and 234,545.00 is: 323,672.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,130.25 : 590,820 = 234,545.00 : x
  2. Step 2: Convert to fraction form
    428,130.25/590,820 = 234,545.00/x
  3. Step 3: Cross multiply
    428,130.25x = 590,820 × 234,545.00
  4. Step 4: Simplify right side
    428,130.25x = 138,573,875,422.95
  5. Step 5: Solve for x
    x = 138,573,875,422.95/428,130.25
  6. Step 6: Final answer
    x = 323,672.24

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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.