Home / 779,313.40-1,071,324.10-670,015.09

Finding the Fourth Proportional to 779,313.40, 1,071,324.10 and 670,015.09

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Solution

The fourth proportional to 779,313.40, 1,071,324.10 and 670,015.09 is: 921,071.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,313.40 : 1,071,324.10 = 670,015.09 : x
  2. Step 2: Convert to fraction form
    779,313.40/1,071,324.10 = 670,015.09/x
  3. Step 3: Cross multiply
    779,313.40x = 1,071,324.10 × 670,015.09
  4. Step 4: Simplify right side
    779,313.40x = 717,803,313,280.67
  5. Step 5: Solve for x
    x = 717,803,313,280.67/779,313.40
  6. Step 6: Final answer
    x = 921,071.44

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.