Home / 487,585.60-672,831.59-272,684.15

Finding the Fourth Proportional to 487,585.60, 672,831.59 and 272,684.15

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Solution

The fourth proportional to 487,585.60, 672,831.59 and 272,684.15 is: 376,283.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,585.60 : 672,831.59 = 272,684.15 : x
  2. Step 2: Convert to fraction form
    487,585.60/672,831.59 = 272,684.15/x
  3. Step 3: Cross multiply
    487,585.60x = 672,831.59 × 272,684.15
  4. Step 4: Simplify right side
    487,585.60x = 183,470,508,007.84
  5. Step 5: Solve for x
    x = 183,470,508,007.84/487,585.60
  6. Step 6: Final answer
    x = 376,283.69

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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.