Home / 486,454.05-671,255.66-282,465.20

Finding the Fourth Proportional to 486,454.05, 671,255.66 and 282,465.20

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Solution

The fourth proportional to 486,454.05, 671,255.66 and 282,465.20 is: 389,772.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,454.05 : 671,255.66 = 282,465.20 : x
  2. Step 2: Convert to fraction form
    486,454.05/671,255.66 = 282,465.20/x
  3. Step 3: Cross multiply
    486,454.05x = 671,255.66 × 282,465.20
  4. Step 4: Simplify right side
    486,454.05x = 189,606,364,253.03
  5. Step 5: Solve for x
    x = 189,606,364,253.03/486,454.05
  6. Step 6: Final answer
    x = 389,772.40

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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.