Home / 1,098,686.63-1,648,040.21-388,835.03

Finding the Fourth Proportional to 1,098,686.63, 1,648,040.21 and 388,835.03

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Solution

The fourth proportional to 1,098,686.63, 1,648,040.21 and 388,835.03 is: 583,256.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,686.63 : 1,648,040.21 = 388,835.03 : x
  2. Step 2: Convert to fraction form
    1,098,686.63/1,648,040.21 = 388,835.03/x
  3. Step 3: Cross multiply
    1,098,686.63x = 1,648,040.21 × 388,835.03
  4. Step 4: Simplify right side
    1,098,686.63x = 640,815,754,312.18
  5. Step 5: Solve for x
    x = 640,815,754,312.18/1,098,686.63
  6. Step 6: Final answer
    x = 583,256.17

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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.