Home / 1,401,870.80-2,102,775.92-390,965.84

Finding the Fourth Proportional to 1,401,870.80, 2,102,775.92 and 390,965.84

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Solution

The fourth proportional to 1,401,870.80, 2,102,775.92 and 390,965.84 is: 586,440.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,401,870.80 : 2,102,775.92 = 390,965.84 : x
  2. Step 2: Convert to fraction form
    1,401,870.80/2,102,775.92 = 390,965.84/x
  3. Step 3: Cross multiply
    1,401,870.80x = 2,102,775.92 × 390,965.84
  4. Step 4: Simplify right side
    1,401,870.80x = 822,113,553,894.57
  5. Step 5: Solve for x
    x = 822,113,553,894.57/1,401,870.80
  6. Step 6: Final answer
    x = 586,440.32

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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.