Home / 826,476.48-1,140,458.78-463,817.21

Finding the Fourth Proportional to 826,476.48, 1,140,458.78 and 463,817.21

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Solution

The fourth proportional to 826,476.48, 1,140,458.78 and 463,817.21 is: 640,023.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,476.48 : 1,140,458.78 = 463,817.21 : x
  2. Step 2: Convert to fraction form
    826,476.48/1,140,458.78 = 463,817.21/x
  3. Step 3: Cross multiply
    826,476.48x = 1,140,458.78 × 463,817.21
  4. Step 4: Simplify right side
    826,476.48x = 528,964,409,459.60
  5. Step 5: Solve for x
    x = 528,964,409,459.60/826,476.48
  6. Step 6: Final answer
    x = 640,023.55

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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.