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Finding the Fourth Proportional to 562,742.44, 776,658.53 and 320,969.59

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Solution

The fourth proportional to 562,742.44, 776,658.53 and 320,969.59 is: 442,980.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,742.44 : 776,658.53 = 320,969.59 : x
  2. Step 2: Convert to fraction form
    562,742.44/776,658.53 = 320,969.59/x
  3. Step 3: Cross multiply
    562,742.44x = 776,658.53 × 320,969.59
  4. Step 4: Simplify right side
    562,742.44x = 249,283,769,944.10
  5. Step 5: Solve for x
    x = 249,283,769,944.10/562,742.44
  6. Step 6: Final answer
    x = 442,980.22

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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.