Home / 1,604,578.11-2,406,848.78-390,161.61

Finding the Fourth Proportional to 1,604,578.11, 2,406,848.78 and 390,161.61

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Solution

The fourth proportional to 1,604,578.11, 2,406,848.78 and 390,161.61 is: 585,237.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,604,578.11 : 2,406,848.78 = 390,161.61 : x
  2. Step 2: Convert to fraction form
    1,604,578.11/2,406,848.78 = 390,161.61/x
  3. Step 3: Cross multiply
    1,604,578.11x = 2,406,848.78 × 390,161.61
  4. Step 4: Simplify right side
    1,604,578.11x = 939,059,996,006.74
  5. Step 5: Solve for x
    x = 939,059,996,006.74/1,604,578.11
  6. Step 6: Final answer
    x = 585,237.95

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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.