Home / 1,005,434.90-1,507,751.40-331,328.60

Finding the Fourth Proportional to 1,005,434.90, 1,507,751.40 and 331,328.60

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Solution

The fourth proportional to 1,005,434.90, 1,507,751.40 and 331,328.60 is: 496,860.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,434.90 : 1,507,751.40 = 331,328.60 : x
  2. Step 2: Convert to fraction form
    1,005,434.90/1,507,751.40 = 331,328.60/x
  3. Step 3: Cross multiply
    1,005,434.90x = 1,507,751.40 × 331,328.60
  4. Step 4: Simplify right side
    1,005,434.90x = 499,561,160,510.04
  5. Step 5: Solve for x
    x = 499,561,160,510.04/1,005,434.90
  6. Step 6: Final answer
    x = 496,860.77

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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.