Home / 745,920.38-1,118,872.34-446,484.54

Finding the Fourth Proportional to 745,920.38, 1,118,872.34 and 446,484.54

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Solution

The fourth proportional to 745,920.38, 1,118,872.34 and 446,484.54 is: 669,721.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,920.38 : 1,118,872.34 = 446,484.54 : x
  2. Step 2: Convert to fraction form
    745,920.38/1,118,872.34 = 446,484.54/x
  3. Step 3: Cross multiply
    745,920.38x = 1,118,872.34 × 446,484.54
  4. Step 4: Simplify right side
    745,920.38x = 499,559,205,681.29
  5. Step 5: Solve for x
    x = 499,559,205,681.29/745,920.38
  6. Step 6: Final answer
    x = 669,721.89

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1.5x scale

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.