Home / 1,218,124.80-1,827,302.40-331,660.80

Finding the Fourth Proportional to 1,218,124.80, 1,827,302.40 and 331,660.80

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Solution

The fourth proportional to 1,218,124.80, 1,827,302.40 and 331,660.80 is: 497,522.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,124.80 : 1,827,302.40 = 331,660.80 : x
  2. Step 2: Convert to fraction form
    1,218,124.80/1,827,302.40 = 331,660.80/x
  3. Step 3: Cross multiply
    1,218,124.80x = 1,827,302.40 × 331,660.80
  4. Step 4: Simplify right side
    1,218,124.80x = 606,044,575,825.92
  5. Step 5: Solve for x
    x = 606,044,575,825.92/1,218,124.80
  6. Step 6: Final answer
    x = 497,522.57

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1.5x scale

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.