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Finding the Fourth Proportional to 524,521.92, 786,080.16 and 490,929.60

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Solution

The fourth proportional to 524,521.92, 786,080.16 and 490,929.60 is: 735,736.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,521.92 : 786,080.16 = 490,929.60 : x
  2. Step 2: Convert to fraction form
    524,521.92/786,080.16 = 490,929.60/x
  3. Step 3: Cross multiply
    524,521.92x = 786,080.16 × 490,929.60
  4. Step 4: Simplify right side
    524,521.92x = 385,910,018,516.74
  5. Step 5: Solve for x
    x = 385,910,018,516.74/524,521.92
  6. Step 6: Final answer
    x = 735,736.68

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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.