Home / 1,852,905.40-2,775,210.90-1,521,129.40

Finding the Fourth Proportional to 1,852,905.40, 2,775,210.90 and 1,521,129.40

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Solution

The fourth proportional to 1,852,905.40, 2,775,210.90 and 1,521,129.40 is: 2,278,289.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,852,905.40 : 2,775,210.90 = 1,521,129.40 : x
  2. Step 2: Convert to fraction form
    1,852,905.40/2,775,210.90 = 1,521,129.40/x
  3. Step 3: Cross multiply
    1,852,905.40x = 2,775,210.90 × 1,521,129.40
  4. Step 4: Simplify right side
    1,852,905.40x = 4,221,454,891,190.46
  5. Step 5: Solve for x
    x = 4,221,454,891,190.46/1,852,905.40
  6. Step 6: Final answer
    x = 2,278,289.49

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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.