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Finding the Fourth Proportional to 617,693.06, 852,376.92 and 345,715.22

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Solution

The fourth proportional to 617,693.06, 852,376.92 and 345,715.22 is: 477,064.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,693.06 : 852,376.92 = 345,715.22 : x
  2. Step 2: Convert to fraction form
    617,693.06/852,376.92 = 345,715.22/x
  3. Step 3: Cross multiply
    617,693.06x = 852,376.92 × 345,715.22
  4. Step 4: Simplify right side
    617,693.06x = 294,679,674,420.72
  5. Step 5: Solve for x
    x = 294,679,674,420.72/617,693.06
  6. Step 6: Final answer
    x = 477,064.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.