Home / 1,215,053.40-1,822,580.10-837,139.80

Finding the Fourth Proportional to 1,215,053.40, 1,822,580.10 and 837,139.80

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Solution

The fourth proportional to 1,215,053.40, 1,822,580.10 and 837,139.80 is: 1,255,709.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,053.40 : 1,822,580.10 = 837,139.80 : x
  2. Step 2: Convert to fraction form
    1,215,053.40/1,822,580.10 = 837,139.80/x
  3. Step 3: Cross multiply
    1,215,053.40x = 1,822,580.10 × 837,139.80
  4. Step 4: Simplify right side
    1,215,053.40x = 1,525,754,340,397.98
  5. Step 5: Solve for x
    x = 1,525,754,340,397.98/1,215,053.40
  6. Step 6: Final answer
    x = 1,255,709.70

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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.