Home / 755,831.70-1,043,008.38-469,345.64

Finding the Fourth Proportional to 755,831.70, 1,043,008.38 and 469,345.64

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Solution

The fourth proportional to 755,831.70, 1,043,008.38 and 469,345.64 is: 647,672.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,831.70 : 1,043,008.38 = 469,345.64 : x
  2. Step 2: Convert to fraction form
    755,831.70/1,043,008.38 = 469,345.64/x
  3. Step 3: Cross multiply
    755,831.70x = 1,043,008.38 × 469,345.64
  4. Step 4: Simplify right side
    755,831.70x = 489,531,430,421.42
  5. Step 5: Solve for x
    x = 489,531,430,421.42/755,831.70
  6. Step 6: Final answer
    x = 647,672.53

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Double scale
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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.