Home / 1,678,774.80-2,517,421.44-480,424.34

Finding the Fourth Proportional to 1,678,774.80, 2,517,421.44 and 480,424.34

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Solution

The fourth proportional to 1,678,774.80, 2,517,421.44 and 480,424.34 is: 720,424.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,678,774.80 : 2,517,421.44 = 480,424.34 : x
  2. Step 2: Convert to fraction form
    1,678,774.80/2,517,421.44 = 480,424.34/x
  3. Step 3: Cross multiply
    1,678,774.80x = 2,517,421.44 × 480,424.34
  4. Step 4: Simplify right side
    1,678,774.80x = 1,209,430,533,813.85
  5. Step 5: Solve for x
    x = 1,209,430,533,813.85/1,678,774.80
  6. Step 6: Final answer
    x = 720,424.52

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Double scale
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1.5x scale

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.