Home / 820,223.60-1,230,335.40-346,751.60

Finding the Fourth Proportional to 820,223.60, 1,230,335.40 and 346,751.60

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Solution

The fourth proportional to 820,223.60, 1,230,335.40 and 346,751.60 is: 520,127.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,223.60 : 1,230,335.40 = 346,751.60 : x
  2. Step 2: Convert to fraction form
    820,223.60/1,230,335.40 = 346,751.60/x
  3. Step 3: Cross multiply
    820,223.60x = 1,230,335.40 × 346,751.60
  4. Step 4: Simplify right side
    820,223.60x = 426,620,768,486.64
  5. Step 5: Solve for x
    x = 426,620,768,486.64/820,223.60
  6. Step 6: Final answer
    x = 520,127.40

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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.