Home / 1,279,681.60-1,918,045.90-480,453.39

Finding the Fourth Proportional to 1,279,681.60, 1,918,045.90 and 480,453.39

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Solution

The fourth proportional to 1,279,681.60, 1,918,045.90 and 480,453.39 is: 720,125.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,681.60 : 1,918,045.90 = 480,453.39 : x
  2. Step 2: Convert to fraction form
    1,279,681.60/1,918,045.90 = 480,453.39/x
  3. Step 3: Cross multiply
    1,279,681.60x = 1,918,045.90 × 480,453.39
  4. Step 4: Simplify right side
    1,279,681.60x = 921,531,654,830.60
  5. Step 5: Solve for x
    x = 921,531,654,830.60/1,279,681.60
  6. Step 6: Final answer
    x = 720,125.74

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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.