Home / 917,569.18-1,376,367.62-318,549.39

Finding the Fourth Proportional to 917,569.18, 1,376,367.62 and 318,549.39

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Solution

The fourth proportional to 917,569.18, 1,376,367.62 and 318,549.39 is: 477,828.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,569.18 : 1,376,367.62 = 318,549.39 : x
  2. Step 2: Convert to fraction form
    917,569.18/1,376,367.62 = 318,549.39/x
  3. Step 3: Cross multiply
    917,569.18x = 1,376,367.62 × 318,549.39
  4. Step 4: Simplify right side
    917,569.18x = 438,441,065,766.75
  5. Step 5: Solve for x
    x = 438,441,065,766.75/917,569.18
  6. Step 6: Final answer
    x = 477,828.89

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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.