Home / 1,245,506.60-1,868,000.70-346,716.20

Finding the Fourth Proportional to 1,245,506.60, 1,868,000.70 and 346,716.20

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Solution

The fourth proportional to 1,245,506.60, 1,868,000.70 and 346,716.20 is: 520,002.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,506.60 : 1,868,000.70 = 346,716.20 : x
  2. Step 2: Convert to fraction form
    1,245,506.60/1,868,000.70 = 346,716.20/x
  3. Step 3: Cross multiply
    1,245,506.60x = 1,868,000.70 × 346,716.20
  4. Step 4: Simplify right side
    1,245,506.60x = 647,666,104,301.34
  5. Step 5: Solve for x
    x = 647,666,104,301.34/1,245,506.60
  6. Step 6: Final answer
    x = 520,002.15

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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.