Home / 971,246.20-1,455,314.10-638,433.40

Finding the Fourth Proportional to 971,246.20, 1,455,314.10 and 638,433.40

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Solution

The fourth proportional to 971,246.20, 1,455,314.10 and 638,433.40 is: 956,627.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,246.20 : 1,455,314.10 = 638,433.40 : x
  2. Step 2: Convert to fraction form
    971,246.20/1,455,314.10 = 638,433.40/x
  3. Step 3: Cross multiply
    971,246.20x = 1,455,314.10 × 638,433.40
  4. Step 4: Simplify right side
    971,246.20x = 929,121,128,930.94
  5. Step 5: Solve for x
    x = 929,121,128,930.94/971,246.20
  6. Step 6: Final answer
    x = 956,627.81

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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.