Home / 745,999.68-1,119,975.04-442,947.20

Finding the Fourth Proportional to 745,999.68, 1,119,975.04 and 442,947.20

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Solution

The fourth proportional to 745,999.68, 1,119,975.04 and 442,947.20 is: 665,000.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,999.68 : 1,119,975.04 = 442,947.20 : x
  2. Step 2: Convert to fraction form
    745,999.68/1,119,975.04 = 442,947.20/x
  3. Step 3: Cross multiply
    745,999.68x = 1,119,975.04 × 442,947.20
  4. Step 4: Simplify right side
    745,999.68x = 496,089,808,037.89
  5. Step 5: Solve for x
    x = 496,089,808,037.89/745,999.68
  6. Step 6: Final answer
    x = 665,000.03

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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.