Home / 817,762.48-1,128,487.10-455,177.03

Finding the Fourth Proportional to 817,762.48, 1,128,487.10 and 455,177.03

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Solution

The fourth proportional to 817,762.48, 1,128,487.10 and 455,177.03 is: 628,130.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,762.48 : 1,128,487.10 = 455,177.03 : x
  2. Step 2: Convert to fraction form
    817,762.48/1,128,487.10 = 455,177.03/x
  3. Step 3: Cross multiply
    817,762.48x = 1,128,487.10 × 455,177.03
  4. Step 4: Simplify right side
    817,762.48x = 513,661,398,652.99
  5. Step 5: Solve for x
    x = 513,661,398,652.99/817,762.48
  6. Step 6: Final answer
    x = 628,130.31

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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.