Home / 679,489.10-1,017,015.81-499,526.87

Finding the Fourth Proportional to 679,489.10, 1,017,015.81 and 499,526.87

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Solution

The fourth proportional to 679,489.10, 1,017,015.81 and 499,526.87 is: 747,659.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,489.10 : 1,017,015.81 = 499,526.87 : x
  2. Step 2: Convert to fraction form
    679,489.10/1,017,015.81 = 499,526.87/x
  3. Step 3: Cross multiply
    679,489.10x = 1,017,015.81 × 499,526.87
  4. Step 4: Simplify right side
    679,489.10x = 508,026,724,309.82
  5. Step 5: Solve for x
    x = 508,026,724,309.82/679,489.10
  6. Step 6: Final answer
    x = 747,659.86

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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.