Home / 869,680.94-1,303,985.59-300,929.72

Finding the Fourth Proportional to 869,680.94, 1,303,985.59 and 300,929.72

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Solution

The fourth proportional to 869,680.94, 1,303,985.59 and 300,929.72 is: 451,209.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,680.94 : 1,303,985.59 = 300,929.72 : x
  2. Step 2: Convert to fraction form
    869,680.94/1,303,985.59 = 300,929.72/x
  3. Step 3: Cross multiply
    869,680.94x = 1,303,985.59 × 300,929.72
  4. Step 4: Simplify right side
    869,680.94x = 392,408,011,210.48
  5. Step 5: Solve for x
    x = 392,408,011,210.48/869,680.94
  6. Step 6: Final answer
    x = 451,209.17

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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.