Home / 756,098.40-1,132,835.40-638,000.40

Finding the Fourth Proportional to 756,098.40, 1,132,835.40 and 638,000.40

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Solution

The fourth proportional to 756,098.40, 1,132,835.40 and 638,000.40 is: 955,893.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,098.40 : 1,132,835.40 = 638,000.40 : x
  2. Step 2: Convert to fraction form
    756,098.40/1,132,835.40 = 638,000.40/x
  3. Step 3: Cross multiply
    756,098.40x = 1,132,835.40 × 638,000.40
  4. Step 4: Simplify right side
    756,098.40x = 722,749,438,334.16
  5. Step 5: Solve for x
    x = 722,749,438,334.16/756,098.40
  6. Step 6: Final answer
    x = 955,893.36

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1.5x scale

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.