Home / 1,425,651.40-2,138,479.86-346,159.42

Finding the Fourth Proportional to 1,425,651.40, 2,138,479.86 and 346,159.42

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Solution

The fourth proportional to 1,425,651.40, 2,138,479.86 and 346,159.42 is: 519,239.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,651.40 : 2,138,479.86 = 346,159.42 : x
  2. Step 2: Convert to fraction form
    1,425,651.40/2,138,479.86 = 346,159.42/x
  3. Step 3: Cross multiply
    1,425,651.40x = 2,138,479.86 × 346,159.42
  4. Step 4: Simplify right side
    1,425,651.40x = 740,254,948,019.28
  5. Step 5: Solve for x
    x = 740,254,948,019.28/1,425,651.40
  6. Step 6: Final answer
    x = 519,239.80

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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.