Home / 1,240,805.09-1,861,337.10-342,246.98

Finding the Fourth Proportional to 1,240,805.09, 1,861,337.10 and 342,246.98

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Solution

The fourth proportional to 1,240,805.09, 1,861,337.10 and 342,246.98 is: 513,406.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,805.09 : 1,861,337.10 = 342,246.98 : x
  2. Step 2: Convert to fraction form
    1,240,805.09/1,861,337.10 = 342,246.98/x
  3. Step 3: Cross multiply
    1,240,805.09x = 1,861,337.10 × 342,246.98
  4. Step 4: Simplify right side
    1,240,805.09x = 637,037,001,236.96
  5. Step 5: Solve for x
    x = 637,037,001,236.96/1,240,805.09
  6. Step 6: Final answer
    x = 513,406.18

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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.