Home / 1,210,468.80-1,815,265.80-490,508.40

Finding the Fourth Proportional to 1,210,468.80, 1,815,265.80 and 490,508.40

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Solution

The fourth proportional to 1,210,468.80, 1,815,265.80 and 490,508.40 is: 735,585.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,468.80 : 1,815,265.80 = 490,508.40 : x
  2. Step 2: Convert to fraction form
    1,210,468.80/1,815,265.80 = 490,508.40/x
  3. Step 3: Cross multiply
    1,210,468.80x = 1,815,265.80 × 490,508.40
  4. Step 4: Simplify right side
    1,210,468.80x = 890,403,123,132.72
  5. Step 5: Solve for x
    x = 890,403,123,132.72/1,210,468.80
  6. Step 6: Final answer
    x = 735,585.36

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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.