Home / 1,147,478.01-1,583,510.89-631,220.78

Finding the Fourth Proportional to 1,147,478.01, 1,583,510.89 and 631,220.78

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Solution

The fourth proportional to 1,147,478.01, 1,583,510.89 and 631,220.78 is: 871,079.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147,478.01 : 1,583,510.89 = 631,220.78 : x
  2. Step 2: Convert to fraction form
    1,147,478.01/1,583,510.89 = 631,220.78/x
  3. Step 3: Cross multiply
    1,147,478.01x = 1,583,510.89 × 631,220.78
  4. Step 4: Simplify right side
    1,147,478.01x = 999,544,982,688.56
  5. Step 5: Solve for x
    x = 999,544,982,688.56/1,147,478.01
  6. Step 6: Final answer
    x = 871,079.86

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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.