Home / 916,709.81-1,375,138.22-348,363.18

Finding the Fourth Proportional to 916,709.81, 1,375,138.22 and 348,363.18

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Solution

The fourth proportional to 916,709.81, 1,375,138.22 and 348,363.18 is: 522,572.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,709.81 : 1,375,138.22 = 348,363.18 : x
  2. Step 2: Convert to fraction form
    916,709.81/1,375,138.22 = 348,363.18/x
  3. Step 3: Cross multiply
    916,709.81x = 1,375,138.22 × 348,363.18
  4. Step 4: Simplify right side
    916,709.81x = 479,047,521,516.92
  5. Step 5: Solve for x
    x = 479,047,521,516.92/916,709.81
  6. Step 6: Final answer
    x = 522,572.70

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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.