Home / 1,240,800.87-1,861,330.71-342,242.76

Finding the Fourth Proportional to 1,240,800.87, 1,861,330.71 and 342,242.76

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Solution

The fourth proportional to 1,240,800.87, 1,861,330.71 and 342,242.76 is: 513,399.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,800.87 : 1,861,330.71 = 342,242.76 : x
  2. Step 2: Convert to fraction form
    1,240,800.87/1,861,330.71 = 342,242.76/x
  3. Step 3: Cross multiply
    1,240,800.87x = 1,861,330.71 × 342,242.76
  4. Step 4: Simplify right side
    1,240,800.87x = 637,026,959,463.16
  5. Step 5: Solve for x
    x = 637,026,959,463.16/1,240,800.87
  6. Step 6: Final answer
    x = 513,399.83

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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.