Home / 1,323,607.35-1,980,400.86-784,153.25

Finding the Fourth Proportional to 1,323,607.35, 1,980,400.86 and 784,153.25

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Solution

The fourth proportional to 1,323,607.35, 1,980,400.86 and 784,153.25 is: 1,173,261.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,323,607.35 : 1,980,400.86 = 784,153.25 : x
  2. Step 2: Convert to fraction form
    1,323,607.35/1,980,400.86 = 784,153.25/x
  3. Step 3: Cross multiply
    1,323,607.35x = 1,980,400.86 × 784,153.25
  4. Step 4: Simplify right side
    1,323,607.35x = 1,552,937,770,671.80
  5. Step 5: Solve for x
    x = 1,552,937,770,671.80/1,323,607.35
  6. Step 6: Final answer
    x = 1,173,261.67

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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.