Home / 1,038,213-1,557,309.60-328,240.92

Finding the Fourth Proportional to 1,038,213, 1,557,309.60 and 328,240.92

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Solution

The fourth proportional to 1,038,213, 1,557,309.60 and 328,240.92 is: 492,358.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,213 : 1,557,309.60 = 328,240.92 : x
  2. Step 2: Convert to fraction form
    1,038,213/1,557,309.60 = 328,240.92/x
  3. Step 3: Cross multiply
    1,038,213x = 1,557,309.60 × 328,240.92
  4. Step 4: Simplify right side
    1,038,213x = 511,172,735,828.83
  5. Step 5: Solve for x
    x = 511,172,735,828.83/1,038,213
  6. Step 6: Final answer
    x = 492,358.25

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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.