Home / 486,453.17-671,254.45-282,464.33

Finding the Fourth Proportional to 486,453.17, 671,254.45 and 282,464.33

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Solution

The fourth proportional to 486,453.17, 671,254.45 and 282,464.33 is: 389,771.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,453.17 : 671,254.45 = 282,464.33 : x
  2. Step 2: Convert to fraction form
    486,453.17/671,254.45 = 282,464.33/x
  3. Step 3: Cross multiply
    486,453.17x = 671,254.45 × 282,464.33
  4. Step 4: Simplify right side
    486,453.17x = 189,605,438,478.77
  5. Step 5: Solve for x
    x = 189,605,438,478.77/486,453.17
  6. Step 6: Final answer
    x = 389,771.21

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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.