Home / 740,494.53-1,021,887.36-400,962.78

Finding the Fourth Proportional to 740,494.53, 1,021,887.36 and 400,962.78

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Solution

The fourth proportional to 740,494.53, 1,021,887.36 and 400,962.78 is: 553,331.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,494.53 : 1,021,887.36 = 400,962.78 : x
  2. Step 2: Convert to fraction form
    740,494.53/1,021,887.36 = 400,962.78/x
  3. Step 3: Cross multiply
    740,494.53x = 1,021,887.36 × 400,962.78
  4. Step 4: Simplify right side
    740,494.53x = 409,738,796,712.46
  5. Step 5: Solve for x
    x = 409,738,796,712.46/740,494.53
  6. Step 6: Final answer
    x = 553,331.29

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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.