Home / 851,831.20-1,276,722.80-352,938.40

Finding the Fourth Proportional to 851,831.20, 1,276,722.80 and 352,938.40

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Solution

The fourth proportional to 851,831.20, 1,276,722.80 and 352,938.40 is: 528,983.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,831.20 : 1,276,722.80 = 352,938.40 : x
  2. Step 2: Convert to fraction form
    851,831.20/1,276,722.80 = 352,938.40/x
  3. Step 3: Cross multiply
    851,831.20x = 1,276,722.80 × 352,938.40
  4. Step 4: Simplify right side
    851,831.20x = 450,604,502,275.52
  5. Step 5: Solve for x
    x = 450,604,502,275.52/851,831.20
  6. Step 6: Final answer
    x = 528,983.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.