Home / 879,680.40-1,318,929.30-346,927.20

Finding the Fourth Proportional to 879,680.40, 1,318,929.30 and 346,927.20

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Solution

The fourth proportional to 879,680.40, 1,318,929.30 and 346,927.20 is: 520,157.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,680.40 : 1,318,929.30 = 346,927.20 : x
  2. Step 2: Convert to fraction form
    879,680.40/1,318,929.30 = 346,927.20/x
  3. Step 3: Cross multiply
    879,680.40x = 1,318,929.30 × 346,927.20
  4. Step 4: Simplify right side
    879,680.40x = 457,572,449,046.96
  5. Step 5: Solve for x
    x = 457,572,449,046.96/879,680.40
  6. Step 6: Final answer
    x = 520,157.60

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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.