Home / 486,973.17-672,021.56-272,113.45

Finding the Fourth Proportional to 486,973.17, 672,021.56 and 272,113.45

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Solution

The fourth proportional to 486,973.17, 672,021.56 and 272,113.45 is: 375,515.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,973.17 : 672,021.56 = 272,113.45 : x
  2. Step 2: Convert to fraction form
    486,973.17/672,021.56 = 272,113.45/x
  3. Step 3: Cross multiply
    486,973.17x = 672,021.56 × 272,113.45
  4. Step 4: Simplify right side
    486,973.17x = 182,866,104,166.21
  5. Step 5: Solve for x
    x = 182,866,104,166.21/486,973.17
  6. Step 6: Final answer
    x = 375,515.77

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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.