Home / 842,487.40-1,263,731.10-488,412.10

Finding the Fourth Proportional to 842,487.40, 1,263,731.10 and 488,412.10

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Solution

The fourth proportional to 842,487.40, 1,263,731.10 and 488,412.10 is: 732,618.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,487.40 : 1,263,731.10 = 488,412.10 : x
  2. Step 2: Convert to fraction form
    842,487.40/1,263,731.10 = 488,412.10/x
  3. Step 3: Cross multiply
    842,487.40x = 1,263,731.10 × 488,412.10
  4. Step 4: Simplify right side
    842,487.40x = 617,221,560,386.31
  5. Step 5: Solve for x
    x = 617,221,560,386.31/842,487.40
  6. Step 6: Final answer
    x = 732,618.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.