Home / 487,445.60-672,670.32-272,583.20

Finding the Fourth Proportional to 487,445.60, 672,670.32 and 272,583.20

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Solution

The fourth proportional to 487,445.60, 672,670.32 and 272,583.20 is: 376,162.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,445.60 : 672,670.32 = 272,583.20 : x
  2. Step 2: Convert to fraction form
    487,445.60/672,670.32 = 272,583.20/x
  3. Step 3: Cross multiply
    487,445.60x = 672,670.32 × 272,583.20
  4. Step 4: Simplify right side
    487,445.60x = 183,358,628,370.62
  5. Step 5: Solve for x
    x = 183,358,628,370.62/487,445.60
  6. Step 6: Final answer
    x = 376,162.24

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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.