Home / 1,038,140.80-1,557,429.90-438,793.45

Finding the Fourth Proportional to 1,038,140.80, 1,557,429.90 and 438,793.45

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Solution

The fourth proportional to 1,038,140.80, 1,557,429.90 and 438,793.45 is: 658,282.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,140.80 : 1,557,429.90 = 438,793.45 : x
  2. Step 2: Convert to fraction form
    1,038,140.80/1,557,429.90 = 438,793.45/x
  3. Step 3: Cross multiply
    1,038,140.80x = 1,557,429.90 × 438,793.45
  4. Step 4: Simplify right side
    1,038,140.80x = 683,390,038,954.16
  5. Step 5: Solve for x
    x = 683,390,038,954.16/1,038,140.80
  6. Step 6: Final answer
    x = 658,282.61

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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.