Home / 638,142.03-880,624.68-347,756.19

Finding the Fourth Proportional to 638,142.03, 880,624.68 and 347,756.19

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Solution

The fourth proportional to 638,142.03, 880,624.68 and 347,756.19 is: 479,897.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,142.03 : 880,624.68 = 347,756.19 : x
  2. Step 2: Convert to fraction form
    638,142.03/880,624.68 = 347,756.19/x
  3. Step 3: Cross multiply
    638,142.03x = 880,624.68 × 347,756.19
  4. Step 4: Simplify right side
    638,142.03x = 306,242,683,536.77
  5. Step 5: Solve for x
    x = 306,242,683,536.77/638,142.03
  6. Step 6: Final answer
    x = 479,897.37

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1.5x scale

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.