Home / 878,492.80-1,317,350.40-404,934.40

Finding the Fourth Proportional to 878,492.80, 1,317,350.40 and 404,934.40

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Solution

The fourth proportional to 878,492.80, 1,317,350.40 and 404,934.40 is: 607,222.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,492.80 : 1,317,350.40 = 404,934.40 : x
  2. Step 2: Convert to fraction form
    878,492.80/1,317,350.40 = 404,934.40/x
  3. Step 3: Cross multiply
    878,492.80x = 1,317,350.40 × 404,934.40
  4. Step 4: Simplify right side
    878,492.80x = 533,440,493,813.76
  5. Step 5: Solve for x
    x = 533,440,493,813.76/878,492.80
  6. Step 6: Final answer
    x = 607,222.39

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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.