Home / 1,087,408.68-1,631,113.02-339,518.76

Finding the Fourth Proportional to 1,087,408.68, 1,631,113.02 and 339,518.76

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Solution

The fourth proportional to 1,087,408.68, 1,631,113.02 and 339,518.76 is: 509,278.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,408.68 : 1,631,113.02 = 339,518.76 : x
  2. Step 2: Convert to fraction form
    1,087,408.68/1,631,113.02 = 339,518.76/x
  3. Step 3: Cross multiply
    1,087,408.68x = 1,631,113.02 × 339,518.76
  4. Step 4: Simplify right side
    1,087,408.68x = 553,793,469,970.26
  5. Step 5: Solve for x
    x = 553,793,469,970.26/1,087,408.68
  6. Step 6: Final answer
    x = 509,278.14

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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.