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Finding the Fourth Proportional to 520,601.32, 780,929.34 and 146,653.48

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Solution

The fourth proportional to 520,601.32, 780,929.34 and 146,653.48 is: 219,987.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,601.32 : 780,929.34 = 146,653.48 : x
  2. Step 2: Convert to fraction form
    520,601.32/780,929.34 = 146,653.48/x
  3. Step 3: Cross multiply
    520,601.32x = 780,929.34 × 146,653.48
  4. Step 4: Simplify right side
    520,601.32x = 114,526,005,345.10
  5. Step 5: Solve for x
    x = 114,526,005,345.10/520,601.32
  6. Step 6: Final answer
    x = 219,987.93

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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.