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Finding the Fourth Proportional to 347,768.40, 487,575.60 and 347,768.40

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Solution

The fourth proportional to 347,768.40, 487,575.60 and 347,768.40 is: 487,575.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,768.40 : 487,575.60 = 347,768.40 : x
  2. Step 2: Convert to fraction form
    347,768.40/487,575.60 = 347,768.40/x
  3. Step 3: Cross multiply
    347,768.40x = 487,575.60 × 347,768.40
  4. Step 4: Simplify right side
    347,768.40x = 169,563,386,291.04
  5. Step 5: Solve for x
    x = 169,563,386,291.04/347,768.40
  6. Step 6: Final answer
    x = 487,575.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.