Home / 740,664.36-1,021,744.26-485,980.20

Finding the Fourth Proportional to 740,664.36, 1,021,744.26 and 485,980.20

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Solution

The fourth proportional to 740,664.36, 1,021,744.26 and 485,980.20 is: 670,408.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,664.36 : 1,021,744.26 = 485,980.20 : x
  2. Step 2: Convert to fraction form
    740,664.36/1,021,744.26 = 485,980.20/x
  3. Step 3: Cross multiply
    740,664.36x = 1,021,744.26 × 485,980.20
  4. Step 4: Simplify right side
    740,664.36x = 496,547,479,823.65
  5. Step 5: Solve for x
    x = 496,547,479,823.65/740,664.36
  6. Step 6: Final answer
    x = 670,408.23

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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.