Home / 1,488,644.20-2,232,966.30-778,889.80

Finding the Fourth Proportional to 1,488,644.20, 2,232,966.30 and 778,889.80

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Solution

The fourth proportional to 1,488,644.20, 2,232,966.30 and 778,889.80 is: 1,168,334.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,488,644.20 : 2,232,966.30 = 778,889.80 : x
  2. Step 2: Convert to fraction form
    1,488,644.20/2,232,966.30 = 778,889.80/x
  3. Step 3: Cross multiply
    1,488,644.20x = 2,232,966.30 × 778,889.80
  4. Step 4: Simplify right side
    1,488,644.20x = 1,739,234,674,813.74
  5. Step 5: Solve for x
    x = 1,739,234,674,813.74/1,488,644.20
  6. Step 6: Final answer
    x = 1,168,334.70

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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.