Home / 986,017.37-1,478,877.42-312,011.11

Finding the Fourth Proportional to 986,017.37, 1,478,877.42 and 312,011.11

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Solution

The fourth proportional to 986,017.37, 1,478,877.42 and 312,011.11 is: 467,969.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,017.37 : 1,478,877.42 = 312,011.11 : x
  2. Step 2: Convert to fraction form
    986,017.37/1,478,877.42 = 312,011.11/x
  3. Step 3: Cross multiply
    986,017.37x = 1,478,877.42 × 312,011.11
  4. Step 4: Simplify right side
    986,017.37x = 461,426,177,973.75
  5. Step 5: Solve for x
    x = 461,426,177,973.75/986,017.37
  6. Step 6: Final answer
    x = 467,969.62

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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.