Home / 486,326.22-671,127.60-282,427.28

Finding the Fourth Proportional to 486,326.22, 671,127.60 and 282,427.28

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Solution

The fourth proportional to 486,326.22, 671,127.60 and 282,427.28 is: 389,748.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,326.22 : 671,127.60 = 282,427.28 : x
  2. Step 2: Convert to fraction form
    486,326.22/671,127.60 = 282,427.28/x
  3. Step 3: Cross multiply
    486,326.22x = 671,127.60 × 282,427.28
  4. Step 4: Simplify right side
    486,326.22x = 189,544,742,600.93
  5. Step 5: Solve for x
    x = 189,544,742,600.93/486,326.22
  6. Step 6: Final answer
    x = 389,748.15

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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.