Home / 1,212,830.40-1,817,787.60-502,492.80

Finding the Fourth Proportional to 1,212,830.40, 1,817,787.60 and 502,492.80

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Solution

The fourth proportional to 1,212,830.40, 1,817,787.60 and 502,492.80 is: 753,135.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,830.40 : 1,817,787.60 = 502,492.80 : x
  2. Step 2: Convert to fraction form
    1,212,830.40/1,817,787.60 = 502,492.80/x
  3. Step 3: Cross multiply
    1,212,830.40x = 1,817,787.60 × 502,492.80
  4. Step 4: Simplify right side
    1,212,830.40x = 913,425,180,929.28
  5. Step 5: Solve for x
    x = 913,425,180,929.28/1,212,830.40
  6. Step 6: Final answer
    x = 753,135.13

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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.