Home / 1,330,809-1,996,785.54-432,526.20

Finding the Fourth Proportional to 1,330,809, 1,996,785.54 and 432,526.20

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Solution

The fourth proportional to 1,330,809, 1,996,785.54 and 432,526.20 is: 648,975.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,809 : 1,996,785.54 = 432,526.20 : x
  2. Step 2: Convert to fraction form
    1,330,809/1,996,785.54 = 432,526.20/x
  3. Step 3: Cross multiply
    1,330,809x = 1,996,785.54 × 432,526.20
  4. Step 4: Simplify right side
    1,330,809x = 863,662,061,831.15
  5. Step 5: Solve for x
    x = 863,662,061,831.15/1,330,809
  6. Step 6: Final answer
    x = 648,975.22

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1.5x scale

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.