Home / 634,840.89-876,078.02-348,365.76

Finding the Fourth Proportional to 634,840.89, 876,078.02 and 348,365.76

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Solution

The fourth proportional to 634,840.89, 876,078.02 and 348,365.76 is: 480,743.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,840.89 : 876,078.02 = 348,365.76 : x
  2. Step 2: Convert to fraction form
    634,840.89/876,078.02 = 348,365.76/x
  3. Step 3: Cross multiply
    634,840.89x = 876,078.02 × 348,365.76
  4. Step 4: Simplify right side
    634,840.89x = 305,195,583,514.77
  5. Step 5: Solve for x
    x = 305,195,583,514.77/634,840.89
  6. Step 6: Final answer
    x = 480,743.42

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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.