Home / 722,819.69-997,530.96-400,522.71

Finding the Fourth Proportional to 722,819.69, 997,530.96 and 400,522.71

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Solution

The fourth proportional to 722,819.69, 997,530.96 and 400,522.71 is: 552,743.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,819.69 : 997,530.96 = 400,522.71 : x
  2. Step 2: Convert to fraction form
    722,819.69/997,530.96 = 400,522.71/x
  3. Step 3: Cross multiply
    722,819.69x = 997,530.96 × 400,522.71
  4. Step 4: Simplify right side
    722,819.69x = 399,533,803,408.10
  5. Step 5: Solve for x
    x = 399,533,803,408.10/722,819.69
  6. Step 6: Final answer
    x = 552,743.39

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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.