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Finding the Fourth Proportional to 687,953.76, 949,696.56 and 458,892.24

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Solution

The fourth proportional to 687,953.76, 949,696.56 and 458,892.24 is: 633,484.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,953.76 : 949,696.56 = 458,892.24 : x
  2. Step 2: Convert to fraction form
    687,953.76/949,696.56 = 458,892.24/x
  3. Step 3: Cross multiply
    687,953.76x = 949,696.56 × 458,892.24
  4. Step 4: Simplify right side
    687,953.76x = 435,808,381,738.69
  5. Step 5: Solve for x
    x = 435,808,381,738.69/687,953.76
  6. Step 6: Final answer
    x = 633,484.99

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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.