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Finding the Fourth Proportional to 896,281.20, 1,236,852 and 488,386.56

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Solution

The fourth proportional to 896,281.20, 1,236,852 and 488,386.56 is: 673,964.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    896,281.20 : 1,236,852 = 488,386.56 : x
  2. Step 2: Convert to fraction form
    896,281.20/1,236,852 = 488,386.56/x
  3. Step 3: Cross multiply
    896,281.20x = 1,236,852 × 488,386.56
  4. Step 4: Simplify right side
    896,281.20x = 604,061,893,509.12
  5. Step 5: Solve for x
    x = 604,061,893,509.12/896,281.20
  6. Step 6: Final answer
    x = 673,964.70

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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.