Home / 1,488,031.80-2,232,738.90-778,860.60

Finding the Fourth Proportional to 1,488,031.80, 2,232,738.90 and 778,860.60

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Solution

The fourth proportional to 1,488,031.80, 2,232,738.90 and 778,860.60 is: 1,168,652.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,488,031.80 : 2,232,738.90 = 778,860.60 : x
  2. Step 2: Convert to fraction form
    1,488,031.80/2,232,738.90 = 778,860.60/x
  3. Step 3: Cross multiply
    1,488,031.80x = 2,232,738.90 × 778,860.60
  4. Step 4: Simplify right side
    1,488,031.80x = 1,738,992,359,297.34
  5. Step 5: Solve for x
    x = 1,738,992,359,297.34/1,488,031.80
  6. Step 6: Final answer
    x = 1,168,652.69

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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.