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Finding the Fourth Proportional to 756,756, 1,044,330.48 and 417,236.40

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Solution

The fourth proportional to 756,756, 1,044,330.48 and 417,236.40 is: 575,790.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,756 : 1,044,330.48 = 417,236.40 : x
  2. Step 2: Convert to fraction form
    756,756/1,044,330.48 = 417,236.40/x
  3. Step 3: Cross multiply
    756,756x = 1,044,330.48 × 417,236.40
  4. Step 4: Simplify right side
    756,756x = 435,732,689,885.47
  5. Step 5: Solve for x
    x = 435,732,689,885.47/756,756
  6. Step 6: Final answer
    x = 575,790.20

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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.