Home / 1,292,462.10-1,938,779.55-439,521.30

Finding the Fourth Proportional to 1,292,462.10, 1,938,779.55 and 439,521.30

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Solution

The fourth proportional to 1,292,462.10, 1,938,779.55 and 439,521.30 is: 659,311.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,462.10 : 1,938,779.55 = 439,521.30 : x
  2. Step 2: Convert to fraction form
    1,292,462.10/1,938,779.55 = 439,521.30/x
  3. Step 3: Cross multiply
    1,292,462.10x = 1,938,779.55 × 439,521.30
  4. Step 4: Simplify right side
    1,292,462.10x = 852,134,908,229.42
  5. Step 5: Solve for x
    x = 852,134,908,229.42/1,292,462.10
  6. Step 6: Final answer
    x = 659,311.33

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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.