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Finding the Fourth Proportional to 428,992.08, 592,024.88 and 259,193.40

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Solution

The fourth proportional to 428,992.08, 592,024.88 and 259,193.40 is: 357,696.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,992.08 : 592,024.88 = 259,193.40 : x
  2. Step 2: Convert to fraction form
    428,992.08/592,024.88 = 259,193.40/x
  3. Step 3: Cross multiply
    428,992.08x = 592,024.88 × 259,193.40
  4. Step 4: Simplify right side
    428,992.08x = 153,448,941,531.79
  5. Step 5: Solve for x
    x = 153,448,941,531.79/428,992.08
  6. Step 6: Final answer
    x = 357,696.44

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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.