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Finding the Fourth Proportional to 634,820.42, 876,049.76 and 348,345.29

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Solution

The fourth proportional to 634,820.42, 876,049.76 and 348,345.29 is: 480,715.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,820.42 : 876,049.76 = 348,345.29 : x
  2. Step 2: Convert to fraction form
    634,820.42/876,049.76 = 348,345.29/x
  3. Step 3: Cross multiply
    634,820.42x = 876,049.76 × 348,345.29
  4. Step 4: Simplify right side
    634,820.42x = 305,167,810,762.62
  5. Step 5: Solve for x
    x = 305,167,810,762.62/634,820.42
  6. Step 6: Final answer
    x = 480,715.18

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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.