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Finding the Fourth Proportional to 507,803.76, 700,752.60 and 306,564.72

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Solution

The fourth proportional to 507,803.76, 700,752.60 and 306,564.72 is: 423,049.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,803.76 : 700,752.60 = 306,564.72 : x
  2. Step 2: Convert to fraction form
    507,803.76/700,752.60 = 306,564.72/x
  3. Step 3: Cross multiply
    507,803.76x = 700,752.60 × 306,564.72
  4. Step 4: Simplify right side
    507,803.76x = 214,826,024,608.27
  5. Step 5: Solve for x
    x = 214,826,024,608.27/507,803.76
  6. Step 6: Final answer
    x = 423,049.30

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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.