Home / 1,240,280.36-1,711,774.06-757,126.76

Finding the Fourth Proportional to 1,240,280.36, 1,711,774.06 and 757,126.76

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Solution

The fourth proportional to 1,240,280.36, 1,711,774.06 and 757,126.76 is: 1,044,949.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,280.36 : 1,711,774.06 = 757,126.76 : x
  2. Step 2: Convert to fraction form
    1,240,280.36/1,711,774.06 = 757,126.76/x
  3. Step 3: Cross multiply
    1,240,280.36x = 1,711,774.06 × 757,126.76
  4. Step 4: Simplify right side
    1,240,280.36x = 1,296,029,947,899.85
  5. Step 5: Solve for x
    x = 1,296,029,947,899.85/1,240,280.36
  6. Step 6: Final answer
    x = 1,044,949.18

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.