Home / 971,011.46-1,339,370.34-644,317.40

Finding the Fourth Proportional to 971,011.46, 1,339,370.34 and 644,317.40

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Solution

The fourth proportional to 971,011.46, 1,339,370.34 and 644,317.40 is: 888,742.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,011.46 : 1,339,370.34 = 644,317.40 : x
  2. Step 2: Convert to fraction form
    971,011.46/1,339,370.34 = 644,317.40/x
  3. Step 3: Cross multiply
    971,011.46x = 1,339,370.34 × 644,317.40
  4. Step 4: Simplify right side
    971,011.46x = 862,979,615,105.92
  5. Step 5: Solve for x
    x = 862,979,615,105.92/971,011.46
  6. Step 6: Final answer
    x = 888,742.98

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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.