Home / 1,038,278.40-1,557,110.40-406,828.80

Finding the Fourth Proportional to 1,038,278.40, 1,557,110.40 and 406,828.80

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Solution

The fourth proportional to 1,038,278.40, 1,557,110.40 and 406,828.80 is: 610,122.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,278.40 : 1,557,110.40 = 406,828.80 : x
  2. Step 2: Convert to fraction form
    1,038,278.40/1,557,110.40 = 406,828.80/x
  3. Step 3: Cross multiply
    1,038,278.40x = 1,557,110.40 × 406,828.80
  4. Step 4: Simplify right side
    1,038,278.40x = 633,477,355,499.52
  5. Step 5: Solve for x
    x = 633,477,355,499.52/1,038,278.40
  6. Step 6: Final answer
    x = 610,122.83

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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.