Home / 745,325.66-1,028,533.28-435,281.60

Finding the Fourth Proportional to 745,325.66, 1,028,533.28 and 435,281.60

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Solution

The fourth proportional to 745,325.66, 1,028,533.28 and 435,281.60 is: 600,679.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,325.66 : 1,028,533.28 = 435,281.60 : x
  2. Step 2: Convert to fraction form
    745,325.66/1,028,533.28 = 435,281.60/x
  3. Step 3: Cross multiply
    745,325.66x = 1,028,533.28 × 435,281.60
  4. Step 4: Simplify right side
    745,325.66x = 447,701,611,771.65
  5. Step 5: Solve for x
    x = 447,701,611,771.65/745,325.66
  6. Step 6: Final answer
    x = 600,679.19

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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.