Home / 428,990.07-592,022.12-259,191.39

Finding the Fourth Proportional to 428,990.07, 592,022.12 and 259,191.39

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Solution

The fourth proportional to 428,990.07, 592,022.12 and 259,191.39 is: 357,693.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,990.07 : 592,022.12 = 259,191.39 : x
  2. Step 2: Convert to fraction form
    428,990.07/592,022.12 = 259,191.39/x
  3. Step 3: Cross multiply
    428,990.07x = 592,022.12 × 259,191.39
  4. Step 4: Simplify right side
    428,990.07x = 153,447,034,897.59
  5. Step 5: Solve for x
    x = 153,447,034,897.59/428,990.07
  6. Step 6: Final answer
    x = 357,693.68

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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.