Home / 1,087,406.68-1,631,110.02-339,516.76

Finding the Fourth Proportional to 1,087,406.68, 1,631,110.02 and 339,516.76

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Solution

The fourth proportional to 1,087,406.68, 1,631,110.02 and 339,516.76 is: 509,275.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,406.68 : 1,631,110.02 = 339,516.76 : x
  2. Step 2: Convert to fraction form
    1,087,406.68/1,631,110.02 = 339,516.76/x
  3. Step 3: Cross multiply
    1,087,406.68x = 1,631,110.02 × 339,516.76
  4. Step 4: Simplify right side
    1,087,406.68x = 553,789,189,193.94
  5. Step 5: Solve for x
    x = 553,789,189,193.94/1,087,406.68
  6. Step 6: Final answer
    x = 509,275.14

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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.