Home / 917,569.31-1,376,367.81-318,549.51

Finding the Fourth Proportional to 917,569.31, 1,376,367.81 and 318,549.51

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Solution

The fourth proportional to 917,569.31, 1,376,367.81 and 318,549.51 is: 477,829.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,569.31 : 1,376,367.81 = 318,549.51 : x
  2. Step 2: Convert to fraction form
    917,569.31/1,376,367.81 = 318,549.51/x
  3. Step 3: Cross multiply
    917,569.31x = 1,376,367.81 × 318,549.51
  4. Step 4: Simplify right side
    917,569.31x = 438,441,291,455.27
  5. Step 5: Solve for x
    x = 438,441,291,455.27/917,569.31
  6. Step 6: Final answer
    x = 477,829.07

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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.