Home / 1,488,511.20-2,232,075.60-646,629.60

Finding the Fourth Proportional to 1,488,511.20, 2,232,075.60 and 646,629.60

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Solution

The fourth proportional to 1,488,511.20, 2,232,075.60 and 646,629.60 is: 969,644.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,488,511.20 : 2,232,075.60 = 646,629.60 : x
  2. Step 2: Convert to fraction form
    1,488,511.20/2,232,075.60 = 646,629.60/x
  3. Step 3: Cross multiply
    1,488,511.20x = 2,232,075.60 × 646,629.60
  4. Step 4: Simplify right side
    1,488,511.20x = 1,443,326,152,397.76
  5. Step 5: Solve for x
    x = 1,443,326,152,397.76/1,488,511.20
  6. Step 6: Final answer
    x = 969,644.13

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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.