Home / 1,211,492.40-1,816,801.20-612,254.40

Finding the Fourth Proportional to 1,211,492.40, 1,816,801.20 and 612,254.40

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Solution

The fourth proportional to 1,211,492.40, 1,816,801.20 and 612,254.40 is: 918,160.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,492.40 : 1,816,801.20 = 612,254.40 : x
  2. Step 2: Convert to fraction form
    1,211,492.40/1,816,801.20 = 612,254.40/x
  3. Step 3: Cross multiply
    1,211,492.40x = 1,816,801.20 × 612,254.40
  4. Step 4: Simplify right side
    1,211,492.40x = 1,112,344,528,625.28
  5. Step 5: Solve for x
    x = 1,112,344,528,625.28/1,211,492.40
  6. Step 6: Final answer
    x = 918,160.55

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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.