Home / 1,338,929.84-2,008,411.05-392,319.74

Finding the Fourth Proportional to 1,338,929.84, 2,008,411.05 and 392,319.74

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Solution

The fourth proportional to 1,338,929.84, 2,008,411.05 and 392,319.74 is: 588,484.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338,929.84 : 2,008,411.05 = 392,319.74 : x
  2. Step 2: Convert to fraction form
    1,338,929.84/2,008,411.05 = 392,319.74/x
  3. Step 3: Cross multiply
    1,338,929.84x = 2,008,411.05 × 392,319.74
  4. Step 4: Simplify right side
    1,338,929.84x = 787,939,300,949.13
  5. Step 5: Solve for x
    x = 787,939,300,949.13/1,338,929.84
  6. Step 6: Final answer
    x = 588,484.38

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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.