Home / 917,569.11-1,376,367.50-318,549.30

Finding the Fourth Proportional to 917,569.11, 1,376,367.50 and 318,549.30

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Solution

The fourth proportional to 917,569.11, 1,376,367.50 and 318,549.30 is: 477,828.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,569.11 : 1,376,367.50 = 318,549.30 : x
  2. Step 2: Convert to fraction form
    917,569.11/1,376,367.50 = 318,549.30/x
  3. Step 3: Cross multiply
    917,569.11x = 1,376,367.50 × 318,549.30
  4. Step 4: Simplify right side
    917,569.11x = 438,440,903,667.75
  5. Step 5: Solve for x
    x = 438,440,903,667.75/917,569.11
  6. Step 6: Final answer
    x = 477,828.75

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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.