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Finding the Fourth Proportional to 634,782.40, 875,970.40 and 348,295.36

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Solution

The fourth proportional to 634,782.40, 875,970.40 and 348,295.36 is: 480,631.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,782.40 : 875,970.40 = 348,295.36 : x
  2. Step 2: Convert to fraction form
    634,782.40/875,970.40 = 348,295.36/x
  3. Step 3: Cross multiply
    634,782.40x = 875,970.40 × 348,295.36
  4. Step 4: Simplify right side
    634,782.40x = 305,096,425,817.34
  5. Step 5: Solve for x
    x = 305,096,425,817.34/634,782.40
  6. Step 6: Final answer
    x = 480,631.51

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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.