Home / 869,628.16-1,303,831.08-383,079.40

Finding the Fourth Proportional to 869,628.16, 1,303,831.08 and 383,079.40

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Solution

The fourth proportional to 869,628.16, 1,303,831.08 and 383,079.40 is: 574,349.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,628.16 : 1,303,831.08 = 383,079.40 : x
  2. Step 2: Convert to fraction form
    869,628.16/1,303,831.08 = 383,079.40/x
  3. Step 3: Cross multiply
    869,628.16x = 1,303,831.08 × 383,079.40
  4. Step 4: Simplify right side
    869,628.16x = 499,470,827,827.75
  5. Step 5: Solve for x
    x = 499,470,827,827.75/869,628.16
  6. Step 6: Final answer
    x = 574,349.88

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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.