Home / 1,038,285.30-1,557,136.35-328,530.90

Finding the Fourth Proportional to 1,038,285.30, 1,557,136.35 and 328,530.90

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Solution

The fourth proportional to 1,038,285.30, 1,557,136.35 and 328,530.90 is: 492,704.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,285.30 : 1,557,136.35 = 328,530.90 : x
  2. Step 2: Convert to fraction form
    1,038,285.30/1,557,136.35 = 328,530.90/x
  3. Step 3: Cross multiply
    1,038,285.30x = 1,557,136.35 × 328,530.90
  4. Step 4: Simplify right side
    1,038,285.30x = 511,567,406,488.22
  5. Step 5: Solve for x
    x = 511,567,406,488.22/1,038,285.30
  6. Step 6: Final answer
    x = 492,704.08

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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.