Home / 639,038.84-881,842.75-348,633.18

Finding the Fourth Proportional to 639,038.84, 881,842.75 and 348,633.18

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Solution

The fourth proportional to 639,038.84, 881,842.75 and 348,633.18 is: 481,096.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,038.84 : 881,842.75 = 348,633.18 : x
  2. Step 2: Convert to fraction form
    639,038.84/881,842.75 = 348,633.18/x
  3. Step 3: Cross multiply
    639,038.84x = 881,842.75 × 348,633.18
  4. Step 4: Simplify right side
    639,038.84x = 307,439,641,320.86
  5. Step 5: Solve for x
    x = 307,439,641,320.86/639,038.84
  6. Step 6: Final answer
    x = 481,096.96

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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.