Home / 355,904.70-533,079.45-276,395.10

Finding the Fourth Proportional to 355,904.70, 533,079.45 and 276,395.10

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Solution

The fourth proportional to 355,904.70, 533,079.45 and 276,395.10 is: 413,988.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,904.70 : 533,079.45 = 276,395.10 : x
  2. Step 2: Convert to fraction form
    355,904.70/533,079.45 = 276,395.10/x
  3. Step 3: Cross multiply
    355,904.70x = 533,079.45 × 276,395.10
  4. Step 4: Simplify right side
    355,904.70x = 147,340,547,890.70
  5. Step 5: Solve for x
    x = 147,340,547,890.70/355,904.70
  6. Step 6: Final answer
    x = 413,988.77

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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.