Home / 486,328.22-671,130.36-282,429.28

Finding the Fourth Proportional to 486,328.22, 671,130.36 and 282,429.28

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Solution

The fourth proportional to 486,328.22, 671,130.36 and 282,429.28 is: 389,750.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,328.22 : 671,130.36 = 282,429.28 : x
  2. Step 2: Convert to fraction form
    486,328.22/671,130.36 = 282,429.28/x
  3. Step 3: Cross multiply
    486,328.22x = 671,130.36 × 282,429.28
  4. Step 4: Simplify right side
    486,328.22x = 189,546,864,360.94
  5. Step 5: Solve for x
    x = 189,546,864,360.94/486,328.22
  6. Step 6: Final answer
    x = 389,750.91

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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.