Home / 729,853.70-1,094,780.55-688,519.40

Finding the Fourth Proportional to 729,853.70, 1,094,780.55 and 688,519.40

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Solution

The fourth proportional to 729,853.70, 1,094,780.55 and 688,519.40 is: 1,032,779.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,853.70 : 1,094,780.55 = 688,519.40 : x
  2. Step 2: Convert to fraction form
    729,853.70/1,094,780.55 = 688,519.40/x
  3. Step 3: Cross multiply
    729,853.70x = 1,094,780.55 × 688,519.40
  4. Step 4: Simplify right side
    729,853.70x = 753,777,647,417.67
  5. Step 5: Solve for x
    x = 753,777,647,417.67/729,853.70
  6. Step 6: Final answer
    x = 1,032,779.10

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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.