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Finding the Fourth Proportional to 575,684.20, 794,426.70 and 321,078.52

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Solution

The fourth proportional to 575,684.20, 794,426.70 and 321,078.52 is: 443,078.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,684.20 : 794,426.70 = 321,078.52 : x
  2. Step 2: Convert to fraction form
    575,684.20/794,426.70 = 321,078.52/x
  3. Step 3: Cross multiply
    575,684.20x = 794,426.70 × 321,078.52
  4. Step 4: Simplify right side
    575,684.20x = 255,073,349,084.48
  5. Step 5: Solve for x
    x = 255,073,349,084.48/575,684.20
  6. Step 6: Final answer
    x = 443,078.60

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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.