Home / 756,132.21-1,043,848.10-512,404.59

Finding the Fourth Proportional to 756,132.21, 1,043,848.10 and 512,404.59

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Solution

The fourth proportional to 756,132.21, 1,043,848.10 and 512,404.59 is: 707,379.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,132.21 : 1,043,848.10 = 512,404.59 : x
  2. Step 2: Convert to fraction form
    756,132.21/1,043,848.10 = 512,404.59/x
  3. Step 3: Cross multiply
    756,132.21x = 1,043,848.10 × 512,404.59
  4. Step 4: Simplify right side
    756,132.21x = 534,872,558,983.79
  5. Step 5: Solve for x
    x = 534,872,558,983.79/756,132.21
  6. Step 6: Final answer
    x = 707,379.68

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1.5x scale

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.