Home / 728,635.80-1,095,027.30-637,397.40

Finding the Fourth Proportional to 728,635.80, 1,095,027.30 and 637,397.40

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Solution

The fourth proportional to 728,635.80, 1,095,027.30 and 637,397.40 is: 957,910.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,635.80 : 1,095,027.30 = 637,397.40 : x
  2. Step 2: Convert to fraction form
    728,635.80/1,095,027.30 = 637,397.40/x
  3. Step 3: Cross multiply
    728,635.80x = 1,095,027.30 × 637,397.40
  4. Step 4: Simplify right side
    728,635.80x = 697,967,553,949.02
  5. Step 5: Solve for x
    x = 697,967,553,949.02/728,635.80
  6. Step 6: Final answer
    x = 957,910.05

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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.