Home / 1,543,608.30-2,315,412.45-421,677.30

Finding the Fourth Proportional to 1,543,608.30, 2,315,412.45 and 421,677.30

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Solution

The fourth proportional to 1,543,608.30, 2,315,412.45 and 421,677.30 is: 632,515.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,543,608.30 : 2,315,412.45 = 421,677.30 : x
  2. Step 2: Convert to fraction form
    1,543,608.30/2,315,412.45 = 421,677.30/x
  3. Step 3: Cross multiply
    1,543,608.30x = 2,315,412.45 × 421,677.30
  4. Step 4: Simplify right side
    1,543,608.30x = 976,356,870,302.39
  5. Step 5: Solve for x
    x = 976,356,870,302.39/1,543,608.30
  6. Step 6: Final answer
    x = 632,515.95

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Double scale
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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.