Home / 742,510.49-1,111,881.80-622,251.21

Finding the Fourth Proportional to 742,510.49, 1,111,881.80 and 622,251.21

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Solution

The fourth proportional to 742,510.49, 1,111,881.80 and 622,251.21 is: 931,798.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,510.49 : 1,111,881.80 = 622,251.21 : x
  2. Step 2: Convert to fraction form
    742,510.49/1,111,881.80 = 622,251.21/x
  3. Step 3: Cross multiply
    742,510.49x = 1,111,881.80 × 622,251.21
  4. Step 4: Simplify right side
    742,510.49x = 691,869,795,426.98
  5. Step 5: Solve for x
    x = 691,869,795,426.98/742,510.49
  6. Step 6: Final answer
    x = 931,798.01

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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.