Home / 1,259,353.20-1,888,943.40-406,412.40

Finding the Fourth Proportional to 1,259,353.20, 1,888,943.40 and 406,412.40

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Solution

The fourth proportional to 1,259,353.20, 1,888,943.40 and 406,412.40 is: 609,590.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,353.20 : 1,888,943.40 = 406,412.40 : x
  2. Step 2: Convert to fraction form
    1,259,353.20/1,888,943.40 = 406,412.40/x
  3. Step 3: Cross multiply
    1,259,353.20x = 1,888,943.40 × 406,412.40
  4. Step 4: Simplify right side
    1,259,353.20x = 767,690,020,658.16
  5. Step 5: Solve for x
    x = 767,690,020,658.16/1,259,353.20
  6. Step 6: Final answer
    x = 609,590.72

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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.