Home / 1,929,569.12-2,662,964.80-1,070,406.40

Finding the Fourth Proportional to 1,929,569.12, 2,662,964.80 and 1,070,406.40

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Solution

The fourth proportional to 1,929,569.12, 2,662,964.80 and 1,070,406.40 is: 1,477,249.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,929,569.12 : 2,662,964.80 = 1,070,406.40 : x
  2. Step 2: Convert to fraction form
    1,929,569.12/2,662,964.80 = 1,070,406.40/x
  3. Step 3: Cross multiply
    1,929,569.12x = 2,662,964.80 × 1,070,406.40
  4. Step 4: Simplify right side
    1,929,569.12x = 2,850,454,564,894.72
  5. Step 5: Solve for x
    x = 2,850,454,564,894.72/1,929,569.12
  6. Step 6: Final answer
    x = 1,477,249.27

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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.