Home / 820,923.80-1,231,385.70-708,730.70

Finding the Fourth Proportional to 820,923.80, 1,231,385.70 and 708,730.70

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Solution

The fourth proportional to 820,923.80, 1,231,385.70 and 708,730.70 is: 1,063,096.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,923.80 : 1,231,385.70 = 708,730.70 : x
  2. Step 2: Convert to fraction form
    820,923.80/1,231,385.70 = 708,730.70/x
  3. Step 3: Cross multiply
    820,923.80x = 1,231,385.70 × 708,730.70
  4. Step 4: Simplify right side
    820,923.80x = 872,720,849,130.99
  5. Step 5: Solve for x
    x = 872,720,849,130.99/820,923.80
  6. Step 6: Final answer
    x = 1,063,096.05

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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.