Home / 1,224,033.25-1,688,641.86-764,349.76

Finding the Fourth Proportional to 1,224,033.25, 1,688,641.86 and 764,349.76

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Solution

The fourth proportional to 1,224,033.25, 1,688,641.86 and 764,349.76 is: 1,054,475.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224,033.25 : 1,688,641.86 = 764,349.76 : x
  2. Step 2: Convert to fraction form
    1,224,033.25/1,688,641.86 = 764,349.76/x
  3. Step 3: Cross multiply
    1,224,033.25x = 1,688,641.86 × 764,349.76
  4. Step 4: Simplify right side
    1,224,033.25x = 1,290,713,000,416.95
  5. Step 5: Solve for x
    x = 1,290,713,000,416.95/1,224,033.25
  6. Step 6: Final answer
    x = 1,054,475.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.