Home / 867,090.40-1,196,585.80-485,117.48

Finding the Fourth Proportional to 867,090.40, 1,196,585.80 and 485,117.48

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Solution

The fourth proportional to 867,090.40, 1,196,585.80 and 485,117.48 is: 669,462.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,090.40 : 1,196,585.80 = 485,117.48 : x
  2. Step 2: Convert to fraction form
    867,090.40/1,196,585.80 = 485,117.48/x
  3. Step 3: Cross multiply
    867,090.40x = 1,196,585.80 × 485,117.48
  4. Step 4: Simplify right side
    867,090.40x = 580,484,687,899.78
  5. Step 5: Solve for x
    x = 580,484,687,899.78/867,090.40
  6. Step 6: Final answer
    x = 669,462.71

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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.