Home / 486,514.40-671,281.92-282,447.84

Finding the Fourth Proportional to 486,514.40, 671,281.92 and 282,447.84

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Solution

The fourth proportional to 486,514.40, 671,281.92 and 282,447.84 is: 389,715.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,514.40 : 671,281.92 = 282,447.84 : x
  2. Step 2: Convert to fraction form
    486,514.40/671,281.92 = 282,447.84/x
  3. Step 3: Cross multiply
    486,514.40x = 671,281.92 × 282,447.84
  4. Step 4: Simplify right side
    486,514.40x = 189,602,128,335.05
  5. Step 5: Solve for x
    x = 189,602,128,335.05/486,514.40
  6. Step 6: Final answer
    x = 389,715.35

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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.