Home / 739,734.30-1,108,620.50-379,890.60

Finding the Fourth Proportional to 739,734.30, 1,108,620.50 and 379,890.60

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Solution

The fourth proportional to 739,734.30, 1,108,620.50 and 379,890.60 is: 569,332.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,734.30 : 1,108,620.50 = 379,890.60 : x
  2. Step 2: Convert to fraction form
    739,734.30/1,108,620.50 = 379,890.60/x
  3. Step 3: Cross multiply
    739,734.30x = 1,108,620.50 × 379,890.60
  4. Step 4: Simplify right side
    739,734.30x = 421,154,506,917.30
  5. Step 5: Solve for x
    x = 421,154,506,917.30/739,734.30
  6. Step 6: Final answer
    x = 569,332.13

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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.