Home / 1,028,592.52-1,543,133.40-429,220.60

Finding the Fourth Proportional to 1,028,592.52, 1,543,133.40 and 429,220.60

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Solution

The fourth proportional to 1,028,592.52, 1,543,133.40 and 429,220.60 is: 643,932.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028,592.52 : 1,543,133.40 = 429,220.60 : x
  2. Step 2: Convert to fraction form
    1,028,592.52/1,543,133.40 = 429,220.60/x
  3. Step 3: Cross multiply
    1,028,592.52x = 1,543,133.40 × 429,220.60
  4. Step 4: Simplify right side
    1,028,592.52x = 662,344,643,828.04
  5. Step 5: Solve for x
    x = 662,344,643,828.04/1,028,592.52
  6. Step 6: Final answer
    x = 643,932.98

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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.