Home / 917,270.76-1,376,143.74-348,661.56

Finding the Fourth Proportional to 917,270.76, 1,376,143.74 and 348,661.56

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Solution

The fourth proportional to 917,270.76, 1,376,143.74 and 348,661.56 is: 523,082.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,270.76 : 1,376,143.74 = 348,661.56 : x
  2. Step 2: Convert to fraction form
    917,270.76/1,376,143.74 = 348,661.56/x
  3. Step 3: Cross multiply
    917,270.76x = 1,376,143.74 × 348,661.56
  4. Step 4: Simplify right side
    917,270.76x = 479,808,423,172.63
  5. Step 5: Solve for x
    x = 479,808,423,172.63/917,270.76
  6. Step 6: Final answer
    x = 523,082.65

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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.