Home / 1,421,230.10-2,132,950.65-991,977.32

Finding the Fourth Proportional to 1,421,230.10, 2,132,950.65 and 991,977.32

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Solution

The fourth proportional to 1,421,230.10, 2,132,950.65 and 991,977.32 is: 1,488,737.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,230.10 : 2,132,950.65 = 991,977.32 : x
  2. Step 2: Convert to fraction form
    1,421,230.10/2,132,950.65 = 991,977.32/x
  3. Step 3: Cross multiply
    1,421,230.10x = 2,132,950.65 × 991,977.32
  4. Step 4: Simplify right side
    1,421,230.10x = 2,115,838,669,479.26
  5. Step 5: Solve for x
    x = 2,115,838,669,479.26/1,421,230.10
  6. Step 6: Final answer
    x = 1,488,737.59

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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.