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Finding the Fourth Proportional to 634,873.16, 876,150.21 and 348,403.50

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Solution

The fourth proportional to 634,873.16, 876,150.21 and 348,403.50 is: 480,810.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,873.16 : 876,150.21 = 348,403.50 : x
  2. Step 2: Convert to fraction form
    634,873.16/876,150.21 = 348,403.50/x
  3. Step 3: Cross multiply
    634,873.16x = 876,150.21 × 348,403.50
  4. Step 4: Simplify right side
    634,873.16x = 305,253,799,689.74
  5. Step 5: Solve for x
    x = 305,253,799,689.74/634,873.16
  6. Step 6: Final answer
    x = 480,810.69

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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.