Home / 820,030.20-1,229,607.90-346,180.20

Finding the Fourth Proportional to 820,030.20, 1,229,607.90 and 346,180.20

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Solution

The fourth proportional to 820,030.20, 1,229,607.90 and 346,180.20 is: 519,085.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,030.20 : 1,229,607.90 = 346,180.20 : x
  2. Step 2: Convert to fraction form
    820,030.20/1,229,607.90 = 346,180.20/x
  3. Step 3: Cross multiply
    820,030.20x = 1,229,607.90 × 346,180.20
  4. Step 4: Simplify right side
    820,030.20x = 425,665,908,743.58
  5. Step 5: Solve for x
    x = 425,665,908,743.58/820,030.20
  6. Step 6: Final answer
    x = 519,085.65

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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.