Home / 879,666.40-1,318,908.30-346,913.20

Finding the Fourth Proportional to 879,666.40, 1,318,908.30 and 346,913.20

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Solution

The fourth proportional to 879,666.40, 1,318,908.30 and 346,913.20 is: 520,136.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,666.40 : 1,318,908.30 = 346,913.20 : x
  2. Step 2: Convert to fraction form
    879,666.40/1,318,908.30 = 346,913.20/x
  3. Step 3: Cross multiply
    879,666.40x = 1,318,908.30 × 346,913.20
  4. Step 4: Simplify right side
    879,666.40x = 457,546,698,859.56
  5. Step 5: Solve for x
    x = 457,546,698,859.56/879,666.40
  6. Step 6: Final answer
    x = 520,136.61

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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.