Home / 646,317.64-891,953.76-359,831.44

Finding the Fourth Proportional to 646,317.64, 891,953.76 and 359,831.44

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Solution

The fourth proportional to 646,317.64, 891,953.76 and 359,831.44 is: 496,587.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,317.64 : 891,953.76 = 359,831.44 : x
  2. Step 2: Convert to fraction form
    646,317.64/891,953.76 = 359,831.44/x
  3. Step 3: Cross multiply
    646,317.64x = 891,953.76 × 359,831.44
  4. Step 4: Simplify right side
    646,317.64x = 320,953,005,874.21
  5. Step 5: Solve for x
    x = 320,953,005,874.21/646,317.64
  6. Step 6: Final answer
    x = 496,587.11

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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.