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Finding the Fourth Proportional to 659,297.66, 909,836.28 and 357,491.66

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Solution

The fourth proportional to 659,297.66, 909,836.28 and 357,491.66 is: 493,341.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,297.66 : 909,836.28 = 357,491.66 : x
  2. Step 2: Convert to fraction form
    659,297.66/909,836.28 = 357,491.66/x
  3. Step 3: Cross multiply
    659,297.66x = 909,836.28 × 357,491.66
  4. Step 4: Simplify right side
    659,297.66x = 325,258,877,516.24
  5. Step 5: Solve for x
    x = 325,258,877,516.24/659,297.66
  6. Step 6: Final answer
    x = 493,341.47

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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.