Home / 1,330,307.70-1,995,461.55-1,220,082.90

Finding the Fourth Proportional to 1,330,307.70, 1,995,461.55 and 1,220,082.90

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Solution

The fourth proportional to 1,330,307.70, 1,995,461.55 and 1,220,082.90 is: 1,830,124.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,307.70 : 1,995,461.55 = 1,220,082.90 : x
  2. Step 2: Convert to fraction form
    1,330,307.70/1,995,461.55 = 1,220,082.90/x
  3. Step 3: Cross multiply
    1,330,307.70x = 1,995,461.55 × 1,220,082.90
  4. Step 4: Simplify right side
    1,330,307.70x = 2,434,628,514,762.49
  5. Step 5: Solve for x
    x = 2,434,628,514,762.49/1,330,307.70
  6. Step 6: Final answer
    x = 1,830,124.35

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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.