Home / 487,071.45-672,166.22-272,225.43

Finding the Fourth Proportional to 487,071.45, 672,166.22 and 272,225.43

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Solution

The fourth proportional to 487,071.45, 672,166.22 and 272,225.43 is: 375,675.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,071.45 : 672,166.22 = 272,225.43 : x
  2. Step 2: Convert to fraction form
    487,071.45/672,166.22 = 272,225.43/x
  3. Step 3: Cross multiply
    487,071.45x = 672,166.22 × 272,225.43
  4. Step 4: Simplify right side
    487,071.45x = 182,980,736,909.85
  5. Step 5: Solve for x
    x = 182,980,736,909.85/487,071.45
  6. Step 6: Final answer
    x = 375,675.35

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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.