Home / 867,464.04-1,197,100.20-485,490.80

Finding the Fourth Proportional to 867,464.04, 1,197,100.20 and 485,490.80

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Solution

The fourth proportional to 867,464.04, 1,197,100.20 and 485,490.80 is: 669,977.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,464.04 : 1,197,100.20 = 485,490.80 : x
  2. Step 2: Convert to fraction form
    867,464.04/1,197,100.20 = 485,490.80/x
  3. Step 3: Cross multiply
    867,464.04x = 1,197,100.20 × 485,490.80
  4. Step 4: Simplify right side
    867,464.04x = 581,181,133,778.16
  5. Step 5: Solve for x
    x = 581,181,133,778.16/867,464.04
  6. Step 6: Final answer
    x = 669,977.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.