Home / 1,289,460.80-1,934,191.20-402,996.80

Finding the Fourth Proportional to 1,289,460.80, 1,934,191.20 and 402,996.80

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Solution

The fourth proportional to 1,289,460.80, 1,934,191.20 and 402,996.80 is: 604,495.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,460.80 : 1,934,191.20 = 402,996.80 : x
  2. Step 2: Convert to fraction form
    1,289,460.80/1,934,191.20 = 402,996.80/x
  3. Step 3: Cross multiply
    1,289,460.80x = 1,934,191.20 × 402,996.80
  4. Step 4: Simplify right side
    1,289,460.80x = 779,472,864,188.16
  5. Step 5: Solve for x
    x = 779,472,864,188.16/1,289,460.80
  6. Step 6: Final answer
    x = 604,495.20

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Double scale
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Similar ratio
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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.