Home / 478,541.28-660,416.46-263,681.31

Finding the Fourth Proportional to 478,541.28, 660,416.46 and 263,681.31

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Solution

The fourth proportional to 478,541.28, 660,416.46 and 263,681.31 is: 363,896.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,541.28 : 660,416.46 = 263,681.31 : x
  2. Step 2: Convert to fraction form
    478,541.28/660,416.46 = 263,681.31/x
  3. Step 3: Cross multiply
    478,541.28x = 660,416.46 × 263,681.31
  4. Step 4: Simplify right side
    478,541.28x = 174,139,477,318.36
  5. Step 5: Solve for x
    x = 174,139,477,318.36/478,541.28
  6. Step 6: Final answer
    x = 363,896.46

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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.