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Finding the Fourth Proportional to 634,840.64, 876,077.70 and 348,365.54

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Solution

The fourth proportional to 634,840.64, 876,077.70 and 348,365.54 is: 480,743.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,840.64 : 876,077.70 = 348,365.54 : x
  2. Step 2: Convert to fraction form
    634,840.64/876,077.70 = 348,365.54/x
  3. Step 3: Cross multiply
    634,840.64x = 876,077.70 × 348,365.54
  4. Step 4: Simplify right side
    634,840.64x = 305,195,281,042.46
  5. Step 5: Solve for x
    x = 305,195,281,042.46/634,840.64
  6. Step 6: Final answer
    x = 480,743.14

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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.