Home / 2,639,645-3,642,710.10-1,432,421

Finding the Fourth Proportional to 2,639,645, 3,642,710.10 and 1,432,421

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Solution

The fourth proportional to 2,639,645, 3,642,710.10 and 1,432,421 is: 1,976,740.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,639,645 : 3,642,710.10 = 1,432,421 : x
  2. Step 2: Convert to fraction form
    2,639,645/3,642,710.10 = 1,432,421/x
  3. Step 3: Cross multiply
    2,639,645x = 3,642,710.10 × 1,432,421
  4. Step 4: Simplify right side
    2,639,645x = 5,217,894,444,152.10
  5. Step 5: Solve for x
    x = 5,217,894,444,152.10/2,639,645
  6. Step 6: Final answer
    x = 1,976,740.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.