Home / 1,310,553.40-1,965,830.10-424,089.40

Finding the Fourth Proportional to 1,310,553.40, 1,965,830.10 and 424,089.40

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Solution

The fourth proportional to 1,310,553.40, 1,965,830.10 and 424,089.40 is: 636,134.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,310,553.40 : 1,965,830.10 = 424,089.40 : x
  2. Step 2: Convert to fraction form
    1,310,553.40/1,965,830.10 = 424,089.40/x
  3. Step 3: Cross multiply
    1,310,553.40x = 1,965,830.10 × 424,089.40
  4. Step 4: Simplify right side
    1,310,553.40x = 833,687,707,610.94
  5. Step 5: Solve for x
    x = 833,687,707,610.94/1,310,553.40
  6. Step 6: Final answer
    x = 636,134.10

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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.