Home / 412,835.20-569,765.28-243,085.12

Finding the Fourth Proportional to 412,835.20, 569,765.28 and 243,085.12

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Solution

The fourth proportional to 412,835.20, 569,765.28 and 243,085.12 is: 335,488.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,835.20 : 569,765.28 = 243,085.12 : x
  2. Step 2: Convert to fraction form
    412,835.20/569,765.28 = 243,085.12/x
  3. Step 3: Cross multiply
    412,835.20x = 569,765.28 × 243,085.12
  4. Step 4: Simplify right side
    412,835.20x = 138,501,461,460.63
  5. Step 5: Solve for x
    x = 138,501,461,460.63/412,835.20
  6. Step 6: Final answer
    x = 335,488.50

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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.