Home / 1,318,280.40-1,977,031.80-519,296.40

Finding the Fourth Proportional to 1,318,280.40, 1,977,031.80 and 519,296.40

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Solution

The fourth proportional to 1,318,280.40, 1,977,031.80 and 519,296.40 is: 778,791.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,280.40 : 1,977,031.80 = 519,296.40 : x
  2. Step 2: Convert to fraction form
    1,318,280.40/1,977,031.80 = 519,296.40/x
  3. Step 3: Cross multiply
    1,318,280.40x = 1,977,031.80 × 519,296.40
  4. Step 4: Simplify right side
    1,318,280.40x = 1,026,665,496,425.52
  5. Step 5: Solve for x
    x = 1,026,665,496,425.52/1,318,280.40
  6. Step 6: Final answer
    x = 778,791.44

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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.