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Finding the Fourth Proportional to 634,808.28, 876,033 and 348,333.16

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Solution

The fourth proportional to 634,808.28, 876,033 and 348,333.16 is: 480,698.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,808.28 : 876,033 = 348,333.16 : x
  2. Step 2: Convert to fraction form
    634,808.28/876,033 = 348,333.16/x
  3. Step 3: Cross multiply
    634,808.28x = 876,033 × 348,333.16
  4. Step 4: Simplify right side
    634,808.28x = 305,151,343,154.28
  5. Step 5: Solve for x
    x = 305,151,343,154.28/634,808.28
  6. Step 6: Final answer
    x = 480,698.43

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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.