Home / 739,206.20-1,108,809.30-487,263.80

Finding the Fourth Proportional to 739,206.20, 1,108,809.30 and 487,263.80

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Solution

The fourth proportional to 739,206.20, 1,108,809.30 and 487,263.80 is: 730,895.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,206.20 : 1,108,809.30 = 487,263.80 : x
  2. Step 2: Convert to fraction form
    739,206.20/1,108,809.30 = 487,263.80/x
  3. Step 3: Cross multiply
    739,206.20x = 1,108,809.30 × 487,263.80
  4. Step 4: Simplify right side
    739,206.20x = 540,282,632,993.34
  5. Step 5: Solve for x
    x = 540,282,632,993.34/739,206.20
  6. Step 6: Final answer
    x = 730,895.70

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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.