Home / 1,152,101.20-1,725,127.80-813,312.40

Finding the Fourth Proportional to 1,152,101.20, 1,725,127.80 and 813,312.40

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Solution

The fourth proportional to 1,152,101.20, 1,725,127.80 and 813,312.40 is: 1,217,833.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,101.20 : 1,725,127.80 = 813,312.40 : x
  2. Step 2: Convert to fraction form
    1,152,101.20/1,725,127.80 = 813,312.40/x
  3. Step 3: Cross multiply
    1,152,101.20x = 1,725,127.80 × 813,312.40
  4. Step 4: Simplify right side
    1,152,101.20x = 1,403,067,831,324.72
  5. Step 5: Solve for x
    x = 1,403,067,831,324.72/1,152,101.20
  6. Step 6: Final answer
    x = 1,217,833.84

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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.