Home / 1,281,401.12-1,768,370.46-708,478.28

Finding the Fourth Proportional to 1,281,401.12, 1,768,370.46 and 708,478.28

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Solution

The fourth proportional to 1,281,401.12, 1,768,370.46 and 708,478.28 is: 977,720.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,401.12 : 1,768,370.46 = 708,478.28 : x
  2. Step 2: Convert to fraction form
    1,281,401.12/1,768,370.46 = 708,478.28/x
  3. Step 3: Cross multiply
    1,281,401.12x = 1,768,370.46 × 708,478.28
  4. Step 4: Simplify right side
    1,281,401.12x = 1,252,852,061,903.61
  5. Step 5: Solve for x
    x = 1,252,852,061,903.61/1,281,401.12
  6. Step 6: Final answer
    x = 977,720.44

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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.