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Finding the Fourth Proportional to 634,012.59, 874,959.80 and 347,532.60

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Solution

The fourth proportional to 634,012.59, 874,959.80 and 347,532.60 is: 479,607.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,012.59 : 874,959.80 = 347,532.60 : x
  2. Step 2: Convert to fraction form
    634,012.59/874,959.80 = 347,532.60/x
  3. Step 3: Cross multiply
    634,012.59x = 874,959.80 × 347,532.60
  4. Step 4: Simplify right side
    634,012.59x = 304,077,052,451.82
  5. Step 5: Solve for x
    x = 304,077,052,451.82/634,012.59
  6. Step 6: Final answer
    x = 479,607.28

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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.