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Finding the Fourth Proportional to 530,956.66, 796,551.54 and 390,288.82

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Solution

The fourth proportional to 530,956.66, 796,551.54 and 390,288.82 is: 585,518.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,956.66 : 796,551.54 = 390,288.82 : x
  2. Step 2: Convert to fraction form
    530,956.66/796,551.54 = 390,288.82/x
  3. Step 3: Cross multiply
    530,956.66x = 796,551.54 × 390,288.82
  4. Step 4: Simplify right side
    530,956.66x = 310,885,160,615.78
  5. Step 5: Solve for x
    x = 310,885,160,615.78/530,956.66
  6. Step 6: Final answer
    x = 585,518.90

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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.