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Finding the Fourth Proportional to 507,279.72, 760,895.92 and 207,686.24

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Solution

The fourth proportional to 507,279.72, 760,895.92 and 207,686.24 is: 311,519.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,279.72 : 760,895.92 = 207,686.24 : x
  2. Step 2: Convert to fraction form
    507,279.72/760,895.92 = 207,686.24/x
  3. Step 3: Cross multiply
    507,279.72x = 760,895.92 × 207,686.24
  4. Step 4: Simplify right side
    507,279.72x = 158,027,612,656.14
  5. Step 5: Solve for x
    x = 158,027,612,656.14/507,279.72
  6. Step 6: Final answer
    x = 311,519.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.