Home / 1,403,602.80-2,105,404.20-1,315,029.30

Finding the Fourth Proportional to 1,403,602.80, 2,105,404.20 and 1,315,029.30

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Solution

The fourth proportional to 1,403,602.80, 2,105,404.20 and 1,315,029.30 is: 1,972,543.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,403,602.80 : 2,105,404.20 = 1,315,029.30 : x
  2. Step 2: Convert to fraction form
    1,403,602.80/2,105,404.20 = 1,315,029.30/x
  3. Step 3: Cross multiply
    1,403,602.80x = 2,105,404.20 × 1,315,029.30
  4. Step 4: Simplify right side
    1,403,602.80x = 2,768,668,211,343.06
  5. Step 5: Solve for x
    x = 2,768,668,211,343.06/1,403,602.80
  6. Step 6: Final answer
    x = 1,972,543.95

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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.